Final answer:
OPTION D.Pellagra is associated with a deficiency in niacin (vitamin B3), marked by symptoms like dermatitis, diarrhea, and dementia, and can be fatal if untreated.
Step-by-step explanation:
Pellagra is a deficiency disease associated with a lack of niacin (vitamin B3) in the diet. This condition is characterized by the "3 Ds": Dermatitis, Diarrhoea, and Dementia, which can include symptoms such as headaches, forgetfulness, depression, and anxiety. If left untreated, pellagra can lead to a fourth 'D' which is Death. Therefore, the correct answer to which diet is associated with pellagra is D. Niacin (vitamin B3) deficiency.
The condition known as pellagra is associated with a deficiency of niacin (vitamin B3). Pellagra is characterized by the "3 Ds" which are dermatitis, diarrhea, and dementia. If left untreated, it can ultimately lead to death.