Match the following.

List-I (RDI Components)	List-II (Determinant Factors)
a. Energy	1. Retinol
b. Vitamin A	2. Activity level
c. Protein	3. Per kg body weight
d. For infants	4. Body weight

A. a-2, b-1, c-4, d-3

B. a-2, b-3, c-1, d-4

C. a-2, b-4, c-3, d-1

D. a-3, b-2, c-1, d-4

Answer: Option A