Do people perform better on exams when they wear their favorite color ?

A. The question is not specific.

B. The question reflects an opinion.  

C. The question can be tested by a systematic procedure.

D. The question asks about phenomena that cannot be measured.

Correct answer choice is:

A scientific question is a problem that may point to a hypothesis and support us in solving the cause for any research. A good scientific question has several aspects. It should have any true results, should be testable.

A systematic process is usually intimately connected with the decisive study. In common, the purpose of a systematic process is viewed as a mechanism of control directed at decreasing the number and austerity of errors, omissions, and failures due to both human or technological functions associated.

idk let me see fdfdgdg