After the Nurse Has Finished Teaching a Patient with Ulcerative

After the nurse has finished teaching a patient with ulcerative colitis about sulfasalazine (Azulfidine) , which patient statement indicates that the teaching has been effective?

A) "I will need to use a sunscreen when I am outdoors."
B) "I will need to avoid contact with people who are sick."
C) "The medication will need to be tapered if I need surgery."
D) "The medication will prevent infections that cause the diarrhea."