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: Social & Preventive Medicine
[{'content': 'Which one of the following is an environmental factor associated with mental illness?a)  Emotional stressb)  Frustrationc)  Broken homed)  Anxiety \nSelect and explain. \nA. abc, B. acd, C. bcd, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Causes of mental ill health\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\n\nOrganic conditions → Cerebral atherosclerosis, neoplasm, endocrine diseases, metabolic diseases, chronic diseases (TB, Leprosy).\nHeredity\nSocial-environmental factors → Worries, anxieties, emotional stress, tension, frustration, unhappy marriages, broken home, poverty, industrialization, urbanization, population mobility, cruelty, rejection, neglect, economic insecurity etc.', 'role': 'assistant'}]