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: Surgery
[{'content': 'Mallory-Weiss tear occurs at \nSelect and explain. \nA. Gastro-oesophageal junction, B. Duodeno-jejunal flexure, C. Ileo-caecal junction, D. Colo-rectal junction', 'role': 'user'}, {'content': "Answer: A \nExplanation: MALLORY WEISS syndrome is seen in adults with severe prolonged vomiting, causing a longitudinal tear in the mucosa of the stomach at and just below the cardia leading to severe hematemesis.Violent vomiting may be due to a migraine or veigo or following a bout of alcohol.Common in 1 o' clock position.Investigations include Hb%, PCV.Treatment includes blood transfusion, IV fluids, sedation and hemostatic agents such as vasopressin. Ref: SRB&;s manual of surgery,5th ed, pg no 803", 'role': 'assistant'}]