An Exercise Psychologist Is Interested in the Type of Messages

An exercise psychologist is interested in the type of messages portrayed in media advertising for fitness classes.To address the question,the researcher collects data from popular magazines advertising fitness classes to women.Assuming all the magazines are available in the library,does this form of research need ethical review?

A) Yes-because the research involves a library.
B) No-because the research involves exercise which is good for you.
C) Yes-because any and all research requires ethical review.
D) No-because all the data are publically available.