Which of the following statements about vitamins are correct?

Q. Which of the following statements about vitamins are correct?

1. Vitamin C is essential to make connective tissue in the body.

2. Vitamin D is needed for the synthesis of eye pigment.

3. Vitamin B12 helps in the maturation of RBC.

4. Vitamin C is required to make use of calcium absorbed from the intestine.

Select the correct answer using the aide given below.

A.            1 and 2

B.            1 and 3

C.            2 and 4

D.            1 and 4

Answer: 1 and 3