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: Pathology
Duodenal villous atrophy is seen in 
Select and explain. 
A. Crohn's disease, B. Ulcerative colitis, C. Celiac disease, D. Cystic fibrosis
C: Celiac disease
Answer: C: Celiac disease 
Explanation: Ans. (c) Celiac disease(Ref: R9/ 1782)D Xylose absorption test is a medical test to diagnose condition that cause malabsorption of proximal small intestine.