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': 'Carcinoma of transverse colon is normally treated by \nSelect and explain. \nA. Right hemicolectomy, B. Extended right hemicolectomy, C. Left hemicloectomy, D. Extended left hemicolectomy', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Carcinomas of the transverse colon and splenic flexure are most commonly treated by an extended right hemicolectomy. Right HemicolectomyCarcinoma of the caecum orascending colonExtended right hemicolectomyCarcinomas of the transversecolon and splenic flexure*Some surgeons prefer to perform a lefthemicolectomy for a splenic flexure cancer.Left hemicolectomydescending colon and sigmoid cancersRef: Bailey and love, page: 1262', 'role': 'assistant'}]