Total cost is the sum of all costs incurred in the production of a good or service. It includes both fixed costs and variable costs. Fixed costs are costs that do not change with changes in the level of output, while variable costs change with changes in the level of output. Examples of fixed costs are rent, insurance, and salaries of permanent staff. Examples of variable costs are raw materials, fuel, and hourly wages of workers. Therefore, the correct option is "fixed cost and variable cost".