The correct answer is: C. fixed
Administration expenses are costs that are incurred regardless of the level of production or sales. They include costs such as rent, salaries, and insurance. These costs are typically fixed in the short run, but they may vary over time due to inflation or changes in the cost of goods and services.
Semi-variable expenses are costs that have both fixed and variable components. For example, the cost of electricity may be fixed for a certain level of usage, but then increase for each additional unit of usage.
Variable expenses are costs that vary directly with the level of production or sales. For example, the cost of raw materials is a variable expense, because it increases as the level of production increases.
None of these is not a correct answer.