Option D is the correct way to configure Additional input to send exactly the same data as Input Data. The Additional input should have the same key/value pairs as Input Data, and the value should be set to
{{InputData.key}} for each key. This will pass the value of Input Data for each key to Additional input.

A DataRaptor Extract can retrieve data from multiple objects using extraction steps and JSON paths.
However, if the data is from a single object, only one extraction step is needed. The Extract JSON Path can use dot notation to access related fields from that object, such as Contact.Account.Name.

The FlexCard Player component is used to display FlexCards in a community page. The developer needs to add the FlexCard's API name to the FlexCard Player component to configure the FlexCard for deployment in a community.

According to the Integration Procedure Actions page, a Calculation Action can be used to "call a Calculation Procedure that performs calculations on input data" and a Matrix Action can be used to "call a Calculation Matrix that performs calculations on input data".

In OmniStudio, the Edit Block element is purpose-built for allowing users to dynamically add, edit, or delete rows of related data, such as dependents under a policy. To save these changes, Remote Actions (typically backed by Apex or API) are used to process each record operation (Create/Update/Delete).
* A. Use an Edit Block element configured with Remote Actions - Correct. This is the recommended and most scalable way to support CRUD operations in OmniScripts for collections (e.g., dependents).
The Edit Block provides UI-level support, while Remote Actions handle back-end interaction with Salesforce or external systems.
Incorrect Options:
* B. Text Block is for display purposes and cannot manage data input or backend actions.
* C. Input Block elements do not support row-level add/edit/delete functionality as Edit Blocks do.
* D. SOQL is a read-only query language and cannot be used to update or delete records directly within an OmniScript.
:
Salesforce OmniStudio Guide # OmniScript Edit Block Element
OmniStudio Best Practices # CRUD Operations in OmniScripts