Ross Is a Psychologist, Whereas Rachel Is a Psychiatrist

Multiple Choice

Ross is a psychologist, whereas Rachel is a psychiatrist. Thus, which of the following is MOST likely to be true?

A) Rachel has not earned a PhD degree.
B) They both have earned MD degrees.
C) They both can prescribe medicine to help people with psychological problems.
D) Only Ross can treat people with psychological problems.
E) Ross is more likely than Rachel to use a medical perspective to understand people.