Which vitamin deficiency causes pellagra?: (A) Vitamin B1, (B) Vitamin B2, (C) Vitamin B3, (D) Vitamin B4
Answer is C. Ans. is 'c' i.e., Vitamin B3* Pellagra characterised by the three Ds - Diarrhoea, Dermatitis and Dementia is caused by niacin or vitamin B3 deficiency.