To answer this question, the user needs to know the different types of software testing.

The correct answer is:

C. Smoke testing

Explanation:

Smoke testing is a type of software testing that is used to check whether the most critical functions of a program are working correctly. The purpose of smoke testing is to determine whether the program is ready for additional testing. It is a quick and simple test that is performed before more comprehensive testing is done. The term "smoke testing" is derived from the idea of turning on a piece of hardware and seeing if it starts smoking. In software, smoke testing is used to determine whether the program will crash or fail catastrophically when run in its most basic configuration.

The other options are incorrect because:

A. Disaster testing: Disaster testing (also called "chaos testing" or "fault injection testing") is a type of software testing that involves creating controlled failures in order to see how well a system can withstand unexpected events.

B. System testing: System testing is a type of software testing that evaluates the functionality of a complete system. It is performed after integration testing and before acceptance testing.

D. Regression testing: Regression testing is a type of software testing that is used to verify that changes to a program have not introduced new bugs or broken existing functionality. It is typically performed after changes have been made to a program, to ensure that the changes did not have unintended consequences.