Which of the following nutrient deficiency causes megaloblastic anaemia?

Q. Which of the following nutrient deficiency causes megaloblastic anaemia?
A. Folic acid
B. Niacin
C. Pyridoxine
D. Cobalamin
Answer: Folic acid.

A. Folic acid
B. Niacin
C. Pyridoxine
D. Cobalamin
Answer: Folic acid.