This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Sex-Hormone, Subject name: Pharmacology
[{'content': 'All are true about estrogen EXCEPT: \nSelect and explain. \nA. Causes cholestasis, B. Used in treatment of gynecomastia, C. Used in HRT, D. Increased risk of breast cancer', 'role': 'user'}, {'content': "Answer: B \nExplanation: ANSWER: (B) Used in treatment of gynecomastiaREF: Harrison's 18th ed chapter 346, KDT 3d1 edition page 276Estrogen receptor antagonists are used in the treatment of gynecomastia not estrogenAdverse effects of Estrogen:Suppression of libido and gynecomastiaFusion of epiphysesEndometrial carcinomaIncreased incidence of breast cancerIncreased incidence of cholestasis and gall stonesIncreased chances of thromboembolism", 'role': 'assistant'}]