Dabir Is an Educational Psychologist

Dabir is an educational psychologist. He needs a thesis topic. He approaches his advisor and tells her he wants to do a study on help-seeking in college students. His advisor sends him away to think some more. Of the following what is the most likely reason?

A) The topic is not ethical.
B) The topic is too narrow.
C) The topic is too broad.
D) The topic is not significant.