Examination of blood of a person suspected of having anaemia, show large, immature, nucleated erythrocytes without haemoglobin. Supplementhing his diet with which of the following is likely to alleviate his symptoms

Options

(a) Riboflavin
(b) Iron compounds
(c) Thiamine
(d) Folic acid and cobalamine

Correct Answer:

Folic acid and cobalamine

Explanation:

As both vitamin B₁₂ and folic acid are involved in maturation of erythrocytes in bone marrow.