This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
Gluten free diet is use in 
Select and explain. 
A. Celiac disease, B. Tropical sprue, C. Ulcerative colitis, D. Irritable bowel syndrome
A: Celiac disease
Answer: A: Celiac disease 
Explanation: Ans. is 'a' i.e., Celiac disease