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: Psychiatry
[{'content': 'Suicidal tendencies seen in -a) Depressionb) Posttraumatic stress disorderc) Schizophreniad) Substance abusee) Anxiety \nSelect and explain. \nA. abc, B. ad, C. acd, D. bde', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Causes/Risk factors for suicide\nPsychiatric disorders : - Depression (most common), alcoholism (2nd mc), Drug/Substance dependence,\xa0Schizophrenia, Dementia.\n\nPhysical illness : - Cancer, AIDS, Multiple sclerosis, Head trauma.\nPsychosocial factors : - Failure in love, marital difficulties, family dispute, illegitimate pregnancy.\nBiological factors : - Decrease in serotonin\nOther - Male sex, Age > 40 years, Single (Unmarried, divorced or widowed), previous suicide attempt, social isolation.', 'role': 'assistant'}]