This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T., Subject name: Medicine
Diarrhoea is a feature of all the following except: 
Select and explain. 
A. Pellagra, B. Diabetes mellitus, C. Antibiotic therapy, D. Steroids
D: Steroids
Answer: D: Steroids 
Explanation: Ans: dRef: Harrison, 16thed, p. 405 for a, p. 229 for b p. 228 for c