Q.

Which of the following is a skin disease?

A. Rickets
B. Osteomalacia
C. Anaemia
D. Pellagra
Answer» D. Pellagra
Explanation: Pellagra is a disease caused by low levels of niacin, also known as vitamin B-3. It's marked by dementia, diarrhea, and dermatitis, also known as “the three Ds”.
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