(TCO A) Within the relevant range, variable costs can be expected to (Points : 6) vary in total in direct proportion to changes in the activity...

4. (TCO A) Within the relevant range, variable costs can be expected to (Points : 6) remain constant in total as the activity level changes. increase on a per-unit basis as the activity level increases. increase on a per-unit basis as the activity level decreases. None of the above