A cost that remains unchanged in total despite variations in volume of activity within a relevant range is a: Multiple Choice Fixed cost. Curvilinear cost. Variable cost. Step-wise variable cost. Standard cost.

The answer is Fixed cost.

Fixed cost remains constant for a given period and does other change with the eh level of production. However, the per unit fixed cost decreases when the Level of production increases and vice versa.

Also, fixed cost is difficult to. control and manage relatively to the variable. costs.