Which of the following is the difference between variable costs and fixed costs?
A variable costs per unity fluctuate and fixed CPU remain constant
B variable CPU are fixed over the relevant range and fixed CPU are variable
C Total variable costs are variable over the relevant range and fixed in the long term, while fixed costs never change
D Variable CPU change in varying increments, while fixed CPU change in equal units
E total variable costs can be varied by mgnt, while fixed costs are uncontrollable