Unit testing: a. provides the final certification that the system is ready to be used in a production setting. b. includes all the preparations for the series of tests to be performed on the system. c. tests each individual program separately. d. tests the functioning of the system as a whole in order to determine if discrete modules will function together as planned.

Option (C) is the correct option to the following question.

Explanation:

The following option is correct because the unit testing is the process of testing a single unit of software at a time, which means the testing of each and every program separately.

In simple words, Unit testing a process of testing in which the developer executes the single method or a function, statements or loop in the program of the software to checking is it working fine or not.

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