Which two types of metadata should be migrated between environments using change sets? (Choose two.)

When a user selects Change > New, they are presented with a ___________ to select the type of change instead of being presented with a new Change form.

Sometimes events on Salesforce need to be handled by an external system due to the scale or type of process being executed. Consider the use case of a user in Salesforce needing to get pricing for an order they are building in Salesforce while on the phone with a customer.
The pricing logic already exists in a third-party system. Instead of recreating this logic in Salesforce, it will be leveraged by making a request of the third-party system. The response, in this case the pricing, will be returned and stored back in Salesforce.
What is the optimal solution?

In Change Management, the Risk Calculator is used to:

Universal Containers uses Big Objects to store almost a billion customer transactions called Customer_Transaction__b.
These are the fields on Customer_Transaction__b:
Account__c
Program__c
Points_Earned__c
Location__c
Transaction_Date_c
The following fields have been identified as Index Fields for the Customer_Transaction__b object: Account__c, Program__c, and Transaction_Date__c.
Which SOQL query is valid on the Customer_Transaction__b Big Object?