Explanation
DataRaptors are OmniStudio data tools that can perform various functions on data, such as reading, writing, transforming, and validating. They can work with Salesforce data and external data sources. The two functions that can be performed by DataRaptors are:
Transform data: DataRaptors can use transformation rules to manipulate data, such as changing the format, applying calculations, mapping values, etc.
Read and write data to Salesforce: DataRaptors can use SOQL or SOSL queries to read data from Salesforce objects and fields, and use DML operations to insert, update, delete, or upsert data to Salesforce.
The functions that cannot be performed by DataRaptors are:
Combine requests into a single response: DataRaptors cannot aggregate multiple requests from different sources into one response. This can be done using Integration Procedures, which can orchestrate multiple DataRaptors or REST calls into a single process.
Read and write data to external systems: DataRaptors cannot directly access external systems or APIs.
They need to use Integration Procedures or REST elements to invoke external services and pass the data to or from DataRaptors.

The tool that the consultant should recommend to meet this requirement is Lightning web components.
Lightning web components are custom HTML elements built using HTML and modern JavaScript. They can be used to create rich and interactive user interfaces that display data from various sources and allow users to take actions. In this case, a Lightning web component can be used to display customer 360° information in a console using FlexCards, OmniScripts, or other components. Omniscript is not a tool, but a type of component that can be used to create guided interactions. Visualforce Page is not suitable for this requirement, as it is a legacy technology that uses server-side rendering and does not support modern web standards. FlexCards are not a tool, but a type of component that can be used to display contextual data on record pages.

The key difference between Integration Procedures and DataRaptors is that Integration Procedures can access data from external sources, while DataRaptors can only access data from Salesforce. Integration Procedures allow the designer to create complex API queries declaratively using HTTP Actions or SOAP Actions.
DataRaptors allow the designer to read, transform, and write data between Salesforce objects or fields. Both Integration Procedures and DataRaptors can invoke multiple actions in a single server call, and both can retrieve data from multiple related objects.

Explanation
The FlexCard feature that the consultant should recommend to meet this requirement is a Datatable element with the Group By property. A Datatable element is an element that can display data in a tabular format, with columns and rows. The consultant can use a Datatable element to display the cases for an account, with columns for case status, case number, subject, etc. The Group By property is a property that allows grouping data by one or more fields, such as case status. The consultant can use the Group By property to organize the cases by case status, so that Escalated cases appear first, followed by Active and Closed cases

The most efficient solution is to clone the existing OmniScript to a new LWC OmniScript and deploy it to the Community portal. LWC OmniScripts are designed for web-based interactions and can be easily embedded in any web page. OmniOut is not a tool for deploying OmniScripts, but a feature that allows users to export data from an OmniScript. Embedding the existing OmniScript as a reusable component within a new Community OmniScript would require creating an unnecessary wrapper script. Duplicating the existing OmniScript would create redundant code and maintenance issues.