Which of the following statements about vitamins are correct?
1. Vitaminc C is essential to make connective tissue in body.
2. Vitamin D is needed for synthesis of eye pigment.
3. Vitamin B₁₂ helps in maturation of RBC.
4. Vitamin-C is required to make use of calcium absorbed from the intestine.
Select the correct answer:

A. 1 and 2

B. 1 and 3

C. 2 and 4

D. 1 and 4

Answer: Option B