Match the following columns

Column I	Column II
a. Fixed cost	1. Overhead cost
b. Variable cost	2. Fixed cost
c. Opportunity cost	3. Prime cost
d. Sunk cost	4. Alternate cost

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

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

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

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

Answer: Option A