A Man with Schizophrenia Experiences Fewer Extrapyramidal Symptoms After His

A man with schizophrenia experiences fewer extrapyramidal symptoms after his drug therapy was switched to aripiprazole. Which attribute of aripiprazole most likely contributes to this improvement?

A) partial agonist at dopamine receptors
B) partial agonist at serotonin receptors
C) full agonist at dopamine receptors
D) full agonist at serotonin receptors
E) antagonist at both serotonin and dopamine receptors