The Nurse Is Teaching a Client Who Is Starting Sumatriptan

The nurse is teaching a client who is starting sumatriptan therapy for treatment of migraine headaches.The nurse instructors the client to take the drug:

A) First thing in the morning if expecting a headache.
B) About 30 minutes after the start of the headache.
C) When the client can lie down for one hour after taking the drug.
D) At the first sign of aura or headache.