Answer:
Total cost, variable cost
Explanation:
The marginal cost is that cost which is produced with an additional unit of the commodity. There are two types of cost i.e variable cost and the fixed cost which are used in the short run for the production.
The variable cost is that cost which can be changed when the production level changes whereas the fixed cost is that cost which cannot be changed whether production level changes or not
And, the sum of the fixed cost and the variable cost is called the total cost
So, the appropriate term is the total cost and the variable cost