This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bleeding from the GUT and diseases of esophagus, Subject name: Medicine
Most common cause of Lower GIT bleeding in adults? 
Select and explain. 
A. Diveiculitis, B. Ulcerative colitis, C. Angiodysplasia colon, D. Colorectal cancer
A: Diveiculitis
Answer: A: Diveiculitis 
Explanation: Lower GIT Bleeding cause in Hemorrhoid > Diveiculitis Best test for diagnosis Diveiculitis is CT Scan If perforation - laparotomy If not perforation - liquid diet along with Antibiotics If asked for vascular cause- Angiodysplasia colon.