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
Rome II criteria are used for 
Select and explain. 
A. Irritable bowel syndrome, B. Inflammatory bowel disease, C. Gastrointestinal tumours, D. Neuroendocrine tumours
A: Irritable bowel syndrome
Answer: A: Irritable bowel syndrome 
Explanation: Rome II criteria for the diagnosis of Irritable Bowel SyndromeRecurrent abdominal pain or discomfo at least 3 days per month in the last 3 months associated with two or more of the following:Improvement with defecationOnset associated with a change in frequency of stoolOnset associated with a change in form (appearance) of stoolRef: Harrison 19e pg: 1965