Within the Relevant Range, a Difference Between Variable Costs and Fixed

Multiple Choice

Within the relevant range, a difference between variable costs and fixed costs is:

A) variable costs per unit fluctuate and fixed costs per unit remain constant.
B) variable costs per unit are constant and fixed costs per unit fluctuate.
C) both total variable costs and total fixed costs are constant.
D) both total variable costs and total fixed costs fluctuate.