In which two cases should an integration procedure be used as a data source for FlexCards and OmniScripts, Choose 2 answers

A company needs to create an OmniScript with three steps.
* Step 1
* Step 2
* Step 3
Enter customer details
Select a product
Display a price retrieved from a REST API
The product's price should automatically display in Step 3.
What should the consultant add to the design of the OmniScript to meet these requirements?

A company plans to rebuild a process that includes functionality that was originally written in APEX and Visual pages using OmniScript. The consultant reviews the process and sees in the first step, the user reviews data then enters additional information. In the next step, the process retrieves data from an external system.
In this scenario, which OmniStudio data tool should the consultant recommend?

A business implements a simple OmniScript in their call center that allows agents to quickly create a case when on the phone with customers. The OmniScript has been running successfully in the call center for over a year. The business decides it wants to allow partners to create cases directly from their Community portal.
What is the most efficient solution that the consultant can propose to meet this new requirement?

What is the purpose of Step elements in OmniScript?