Explanation
The OmniStudio tool that creates a Chatter post and sends it to a Chatter feed is Integration Procedure. An Integration Procedure can execute multiple DataRaptor actions, such as Extract, Transform, and Load, and also invoke REST or SOAP services. One of the REST services that an Integration Procedure can invoke is Chatter API, which allows creating and sending Chatter posts to users or groups

Explanation
The correct OmniStudio tools to design a solution that meets these requirements are OmniScript, Calculation Procedures and Matrices, and OmniStudio Action. OmniScript can be used to create a user interface for capturing customer information and displaying suggested products. Calculation Procedures and Matrices can be used to compute the discount percentage per product based on the customer data provided. OmniStudio Action can be used to save the list of suggested products including discounts to Salesforce or an external system. Integration Procedures are not needed for this scenario, as there is no data integration involved.
FlexCard is not relevant for this scenario, as it is used to display contextual data on record pages.

Explanation
The FlexCard functionality that can be used to meet this requirement is Conditional View. A Conditional View is a property that determines whether a FlexCard element, such as a field or an action, is visible or hidden based on certain conditions. The consultant can use a Conditional View to show or hide the reopen case action based on the status of the case

Explanation
The type of action that the consultant should recommend to meet this new requirement is Email. An Email action is an action that can send an email to one or more recipients, with optional attachments and templates. The consultant can use an Email action to add a new action to the FlexCards that sends an email to the customer with a summary report attached