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: Pharmacology
True statement about Omeprazole is - 
Select and explain. 
A. It may cause Leomyosarcoma, B. It is a nitrosource, C. May induce carcinoid tumours in rats, D. It is more frequently used by I.V. route than orally
C: May induce carcinoid tumours in rats
Answer: C: May induce carcinoid tumours in rats 
Explanation: Ans. is 'c' i.e., May induce Carcinoid tumor in Rats "Because of marked and long lasting acid suppression, compensatory hypergastrinemia has been observed. This has been found to induce proliferation of parietal cells and gastric carcinoid tumours in rats, but not in human beings".