Correct option is C
Answer: (c) Depression
Explanation: Depression is widely recognized as the mental illness contributing the highest number of disability-adjusted life years globally. DALYs account for both years of life lost due to premature mortality and years lived with disability. Despite the severity of conditions like schizophrenia, alcohol dependence, and bipolar disorder, depression’s high prevalence and chronic impact on daily functioning result in a larger overall burden of disease. Consequently, depression is the leading contributor to DALYs among mental disorders, underscoring its significant public health impact.