Answer:
I would say Option B
Explanation:
A controlled experiment is where you have two or more independent variables, that way you have an experiment to compare results with.
Answer:
Treatment for Crohn's disease and ulcerative colitis
medication to reduce the chances of flare-ups. steroid (cortisone) medication. medication to reduce the activity of the immune system. corrective surgery for complications.
Explanation:
Stored in a location that all staff can access during work hours.