When a factory is operating in the short run,

A) it cannot alter variable costs.
B) total cost and variable cost are usually the same.
C) average fixed cost rises as output increases.
D) it cannot adjust the quantity of fixed inputs.

Short Run

A period in economics during which at least one input, such as plant size or capital, is fixed and cannot be changed.

Variable Costs

Variable costs are expenses that change in proportion to the activity or volume of business, such as materials and labor costs.

Fixed Inputs

Resources used in production that cannot be easily increased or decreased in a short period.