<prompt> Suicidal tendencies are least common with-AloneDepressionMaleMarried person  <response>: Ans. is d i.e., Married person o Single unmarried person is a risk factor, not married person.Causes,Risk factors for suicidePsychiatric disorders : - Depression most common, alcoholism 2nd me, DrugSubstance dependence. Schizophrenia, Dementia.Physical illness: - Cancer, AIDS, Multiple sclerosis, Head trauma.Psychosocial factors: - Failure in love, marital difficulties, family dispute, illegitimate pregnancy.Biological factors: - Decrease in serotoninOther - Male sex, Age 40 years, Single Unmarried, divorced or widowed, previous suicide attempt, social isolation. 