This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Intestinal Polyps, Colon & Anal Cancer, Subject name: Pathology
[{'content': "What is false about Meckel's diveiculitis? \nSelect and explain. \nA. Present in 3% of the population, B. Presents with periumbilical pain, C. Remnant of proximal pa of vitellointestinal duct, D. Lies on the anti-mesenteric border", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Meckel diveiculum Failed involution of proximal vitello-intestinal duct . It is true diveiculum which includes all three layers of bowel wall Extends from antimesenteric side of bowel, presenting with periumbilical pain. - The "rule of 2s" 2% of population Within 2 feet (60 cm) from ileocecal valve Approximately 2 inches (5 cm) long Twice as common in males Presents before age of 2yrs', 'role': 'assistant'}]