What Is the Most Important Question for the Nurse to Ask

What is the most important question for the nurse to ask a patient when preparing to teach about a newly prescribed drug?

A) "What do you want to learn about this health problem and its treatment?"
B) "Have you ever been sick before and had to take prescribed drugs for the problem?"
C) "How many people, relatives, or friends do you know who also have this health problem?"
D) "Do you understand that if you don't take care of this problem now, it will only become worse?"