Which one of the following pairs is not correctly matched?

Correct option is A. Vitamin-B2-Pernicious anaemia
Correct answer: A
Option (A):∙The deficiency of vitamin B2 leads to specific skin disorders and edema of the mouth and throat.∙Pernicious anaemia is caused due to the deficiency of Vitamin B12.
Option (B):∙Vitamin B6 deficiency causes skin rashes, loss of appetite and swelling of the tongue. The symptoms also include weak immune functions.
Option (C):∙The deficiency of vitamin B1 causes beriberi. This condition affects the heart and the circulatory system of the patient.
Option (D):∙Vitamin B3 deficiency is responsible for causing pellagra. The symptoms include diarrhoea, dermatitis and also dementia.
Hence, the correct answer is option (A).