This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Disorders of Gastrointestinal System Including Diarrhea, Subject name: Pediatrics
[{'content': 'The abdominal mass in congenital hyperophic pyloric stenosis is a new born child can be best palpated:- \nSelect and explain. \nA. In the midepigastric area, B. In the right hypochondriac quadrant, C. In the umbilical area, D. During feeding', 'role': 'user'}, {'content': "Answer: A \nExplanation: Congenital Hyperophic Pyloric stenosis: Movable, 2 cm in length, olive shaped mass- best palpated in MIDEPIGASTRIUM beneath Liver's edge.", 'role': 'assistant'}]