Correct Option: C

In economics, fixed costs are business expenses that are not dependent on the level of goods or services produced by the business. They tend to be timerelated, such as salaries or rents being paid per month, and are often referred to as overhead costs. For some employees, salary is paid on monthly rates, independent of how many hours the employees work. This is a fixed cost. On the other hand, the hours of hourly employees paid in wages, can often be varied, so this type of labour cost is a variable cost.