Correct Option: A

Prime Cost refers to a business’s expenses for the materials and labor it uses in production. Prime cost is a way of measuring the total cost of the production inputs needed to create a given output. By analyzing its prime costs, a company can determine how much it must charge for its finished product in order to make a profit. Variable costs are expenses that change in proportion to the activity of a business. Variable cost is the sum of marginal costs over all units produced. It can also be considered normal costs. Fixed costs and variable costs make up the two components of total cost. Prime Cost = Direct Materials + Direct Labour+ Direct expenses. This comes to Variable cost + Administrative cost. Administrative cost is the cost associated with the general management of organization in accounting.