According to the VMware vRealize Operations Reference Materials, interactions between widgets allow you to display data that shows dependencies between objects in your environment. For example, you can configure a widget to act as a provider or a receiver of data from another widget. When you select an object in the provider widget, the receiver widget updates to show the data related to that object. In this case, the list view widget should be configured as a provider, and the other widgets on the dashboard should be configured as receivers. This way, when the operator clicks on a virtual machine in the list view, the other widgets will show the relevant data for that virtual machine. Therefore, option D is correct.
The other options are not correct because they are not related to the problem of updating the widgets based on the selection in the list view. Option A is not correct because dashboard sharing is a feature that allows you to share a dashboard or a dashboard template with one or more user groups, but it does not affect the widget interactions. Option B is not correct because the Refresh Content option is a setting that allows you to refresh the data in a widget manually or automatically, but it does not affect the widget interactions. Option C is not correct because the object relationship widgets are a type of widgets that show the relationships between objects in your environment, such as parent-child, sibling, or peer relationships, but they are not related to the widget interactions. References:
Create and Configure Dashboards
Dashboards
vRealize Operations Dashboards Made Easy - Part 3-5 Creating Dashboards Build great dashboards with vRealize Operations Cloud - Part 1

What-If Analysis is a feature of vRealize Operations that allows you to plan for an increase or decrease in workload or capacity requirements in your virtual infrastructure. You can use What-If Analysis to evaluate the demand and supply for capacity on your resources, and to assess the potential risk to your current capacity. You can create scenarios for adding and removing workloads, hosts, clusters, or datastores, and see the impact on the time remaining and capacity remaining scores12.
Time remaining and capacity remaining are two metrics that measure the available capacity in your environment. Time remaining is the estimated time until a resource runs out of capacity based on the current utilization and growth trends. Capacity remaining is the percentage of unused capacity that is available for future growth. Both metrics are calculated for CPU, memory, disk space, and network bandwidth resources34.
By using What-If Analysis, you can accomplish the goal of determining how many more ESXi servers are needed to increase the time remaining and capacity remaining scores. You can create a scenario for adding ESXi servers to a cluster or a datacenter, and specify the number, type, and configuration of the servers. You can then see the projected time remaining and capacity remaining scores for the cluster or the datacenter after adding the servers. You can also compare the results with the current scores and the recommended scores. You can adjust the number of servers until you reach the desired scores5 .
References:
1: What-If Analysis: Modeling Workload, Capacity, or Migration Planning 2: Create a What-If Scenario 3:
[Capacity Overview - VMware Docs] 4: [Time Remaining and Capacity Remaining Metrics] 5: [Add Hosts to a Cluster or Datacenter Scenario] : [View the Results of a What-If Scenario] : vRealize Operations Manager User Guide : vRealize Operations Manager Installation and Configuration Guide : [vRealize Operations Manager Concepts Guide] : [vRealize Operations Manager Administration Guide] : [vRealize Operations Manager Customization and Extensibility Guide] : [vRealize Operations Manager Troubleshooting Guide] :
[vRealize Operations Manager API Programming Guide] : [vRealize Operations Manager Certification Exam Guide]

In VMware vRealize Operations, policies determine how objects are analyzed and managed. They include settings for metrics collection, alert definitions, symptoms, recommendations, and more. If an administrator disables some virtual machine metrics in the Production policy, only objects assigned to that specific policy will be affected. The changes won't impact other policies or globally affect all objects. This is because policies are hierarchical and inherit settings from their parent policies, unless overridden by the child policies. In the exhibit, the Production policy and the TestDev policy are both child policies of theCompany default policy, which is a child policy of the vSphere solution's default policy, which is a child policy of the Base settings.
Therefore, any changes made to the Production policy will only apply to the objects assigned to that policy, and not to the objects assigned to the TestDev policy or any other policy. References:
vRealize Operations Policies, page 1-2
Manage Policies, page 3-4
Disable Metrics Collection, page 5