Jonathon loves to study and research the science of the mind. He has counseled some patients and has also published articles on theories of mind. Jack prefers to practice as a physician, treating patients for a variety of mental disorders. Jonathon is a(n) ___ and Jack is a(n) ___.
a. psychiatologist; psychiatrist
b. psychologist; psychiatrician
c. psychologer; psychiater
d. psychologist; psychiatrist