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: Pharmacology
[{'content': 'All are true about estrogen EXCEPT- \nSelect and explain. \nA. Causes cholestasis, B. Used in treatment of gynaecomastia, C. Used in H, D. Increased risk of breast cancer', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Used in treatment of gynacomastia o Estrogen can cause gynaecomastia (not used in gynaecomastia), cholestasis and breast cancer. o One of the most impoant use of estrogen is H in postmenopausal females.", 'role': 'assistant'}]