How Would the Greek Physician Hippocrates Have Typically Dealt with Someone

How would the Greek physician Hippocrates have typically dealt with someone suffering from mental illness?

A) He would have focused on correcting the imbalance of bodily fluids, or humors.
B) He would have made a hole in the patient's skull to release the pressure, a process known today as trephining.
C) He would have had someone conduct the religious ritual known as an exorcism.
D) He would have tried to understand the person's unconscious and the forces at work there.