When a patient arrived in the emergency room, he was shouting, his speech was rapid, and he was completely "out of control." The attending psychiatrist believed the patient had taken cocaine or amphetamines and admitted him for observation

The next day the symptoms were the same. What condition might the psychiatrist now consider as a likely diagnosis because it can be confused with symptoms of cocaine or amphetamine use?
a) mania
b) dissociative fugue
c) conversion disorder
d) catatonic schizophrenia

A