This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Gynaecology & Obstetrics
[{'content': 'Human chorionic gonadotrophin shares structural similarity with all except \nSelect and explain. \nA. FSH, B. GH, C. LH, D. TSH', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Amino acid sequence of\xa0α - subunit of hcG is identical in FSH, LH and TSH.', 'role': 'assistant'}]