When locking up her house before bed, Perri feels the need to lock and unlock a door three times in a row before going to lock the next door in her house. What would a psychiatrist prescribe her, and what will the medication do?

a. She would be prescribed citaopram, which will exaggerate her compulsive behavior.
b. She would be prescribed serotonin, which will influence her feelings of happiness.
c. She would be prescribed dopamine, which will increase her emotional response.
d. She would be prescribed benzodiazepines,which will calm her compulsive behavior.