Deficiency of which of the following vitamins is the most common cause of child blindness? [1].
A. Vitamin B12
B. Vitamin D
C. Vitamin E
D. Vitamin A
Answer:D
Deficiency of which of the following vitamins is the most common cause of child blindness? [1].
A. Vitamin B12 B. Vitamin D C. Vitamin E D. Vitamin A