The correct answer is: A. Total variable cost
Total variable cost (TVC) is the total cost of all variable inputs used in the production of a good or service. Variable costs are those costs that change in proportion to the amount of output produced. For example, the cost of raw materials is a variable cost, because the more goods or services that are produced, the more raw materials will be needed.
Total fixed cost (TFC) is the total cost of all fixed inputs used in the production of a good or service. Fixed costs are those costs that do not change in proportion to the amount of output produced. For example, the cost of rent is a fixed cost, because the rent will be the same regardless of how many goods or services are produced.
In the short run, some costs are fixed and some costs are variable. This is because some inputs cannot be changed in the short run, while other inputs can be changed. For example, the cost of a factory building is a fixed cost, because the factory building cannot be changed in the short run. However, the cost of labor is a variable cost, because the number of workers can be changed in the short run.
Therefore, the costs that depend on the output in the short run are total variable costs.