Match the following.

List-I	List-II
a. Stock away	1. Incorporates weight and space consideration
b. Density	2. Cost which does not change with the service or volume
c. Variable cost	3. Product dimension and impact of the same on vehicle space utilisation
d. Fixed cost	4. Cost which changes with the service

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

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

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

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

Answer: Option D