Positive testing is A. running the system with line data by the actual user B. making sure that the new programs do in fact process certain transactions according to Specifications C. is checking the logic of one or more programs in the candidate system D. testing changes made in an existing or a new program E. None of the above

The correct answer is: B. making sure that the new programs do in fact process certain transactions according to Specifications.

Positive testing is a type of software testing that focuses on ensuring that the system works as expected. This is done by providing the system with valid input and verifying that the output is correct. Positive testing is often used in conjunction with negative testing, which focuses on finding bugs in the system.

Option A is incorrect because it describes black-box testing, which is a type of testing that does not consider the internal structure of the system.

Option C is incorrect because it describes unit testing, which is a type of testing that focuses on individual units of code.

Option D is incorrect because it describes regression testing, which is a type of testing that is used to verify that changes to the system have not introduced new bugs.

Option E is incorrect because it is not a valid option.