Consider the following statements :
With limited amount of fertilizer, allocation of fertilizer to different crops to get maximum profit depends on
1. Price of product
2. Marginal physical products of crops
3. Cost of fertilizer
4. Average products of crops
Which of these statements are correct?

A. 1 and 2

B. 1 and 3

C. 1 and 4

D. 3 and 4

Answer: Option A