A Client Has Cyclical Headaches Accompanied by Constricted Pupils, Unilateral

A client has cyclical headaches accompanied by constricted pupils, unilateral lacrimation, and rhinorrhea. The nurse is exploring ways to prevent these headaches with the client. The nurse could focus questions and interventions on modifying the client's

A) daily level of stress.
B) family history of brain tumors.
C) pattern of caffeine consumption.
D) usual alcohol intake.