You imported a rule-admin-product (RAP) file that contains new features into a user acceptance testing(UAT)...

To ensure basic functionality behaves as expected before inviting users to start acceptance testing after importing a Rule-Admin-Product (RAP) file:

Create a regression test suite. Run the test suite using the automation server (Answer D):

Explanation: A regression test suite helps verify that the new features do not break existing functionality. Running these tests using an automation server ensures that the process is repeatable, reliable, and efficient.