The results for conventional and activity-based costing (ABC) computations will be the same as long as: a. the levels of activity for non-unit based cost drivers increase. b. fixed costs remain constant at any level of activity. c. fixed costs decrease as the level of activity increases. d. the levels of activity for non-unit based cost drivers remain the same.

d.the levels of activity for non-unit based cost drivers remain the same.

Explanation:

In the case of conventional and activity based costing calculations,  the output should be similar to the activity levels that belong to the non-unit in which the cost driver should remain the same

Thus as per the given scenario, the option d is correct

And, the rest of the options seems incorrect

answer; specific performance;