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: Medicine
[{'content': 'All are components of Laurence Moon Biedl syndrome, EXCEPT - \nSelect and explain. \nA. Digital anomaly, B. Asthenic built, C. Mental retardation, D. Hypogonadism', 'role': 'user'}, {'content': 'Answer: B \nExplanation: In Lawrence Moon - Beidle syndrome the patient is obese, not asthenic\nOther features are -\n\nMental retardation\nRetinitis pigmentosa\nPolydactyly\nHypogonadotropic hypogonadism (This causes Amenorrhoea)', 'role': 'assistant'}]