As per the project plan, your project will have a very short regression testing phase. Foreseeing a risk, your lead asks you and your team to prioritize the test cases as and when you create so that the prioritized test cases can be executed first during regression. Do you think that this prioritization will help in doing regression?

What is the correct answer $-$

a$.$ No$,$ only a schedule extension or increase in resources can help this situation.

b$.$ No$,$ an adhoc or random testing should help this situation better.

c$.$ Yes, the prioritized test suite can better meet the objective than would an ad hoc or random ordering of test cases.

d$.$ Yes, the prioritized test suite would result in a complete fault detection saving cost and time.