Answer:
a. Unit fixed cost = Decreases
b. Unit variable cost = Increases
c. Total fixed cost = Unchanged
d. Total Variable cost = Increases
Explanation:
The unit fixed cost is decreasing as there is an increase in the activity level but the total fixed cost would remain constant
The unit variable cost increases if there is an increase in the activity level as it shows a direct relationship between the activity level and unit variable cost
The total fixed cost would remain the same whether the activity level changes or not. It always remains constant
Together with the unit variable cost, the total variable cost is also increased if the activity level increases