Please read the following passage and then answer questions 48-50.        Psychology is literally the study of the mind (or soul) but its area has broadened somewhat inthe last century as we have learned that one cannot consider the mind as totally isolated from thebody, and it now includes the study of human personality and behavior. Psychologists also study thebehavior and brain of animals whenever such studies throw light on human behavior. It is importantto realize that psychologists are first and foremost trained as scientists rather than as medical expertsand do not necessarily take much interest in abnormalities of the brain and mental process.

【題組】48.As can be inferred from the passage, psychology________ .
(A) has in time developed as a branch of medicine
(B) has always been confined to the study of the mind
(C) is not concerned with the mind alone, but also with human personality and behavior
(D) primarily concentrates on the study of animal behavior
(E) mostly deals with mental abnormalities