Which term describes the largest category of an operation's costs?

• A. The smallest category of costs
• B. Labor costs
• C. Variable costs
• D. Prime Cost

Answer: (D)

Prime costs are the largest category because they combine the two biggest controllable cost drivers in a hospitality operation: direct materials (food and beverages) and direct labor (kitchen and service staff). These are the expenses that move most with volume and menu changes, so together they typically form the single largest block of costs for a restaurant or similar operation. By focusing on prime costs, management can influence profitability through menu design, portion control, supplier pricing, and staffing efficiency.

Other options don’t capture this combined, largest category: labor costs alone omit materials, variable costs describe how costs change with volume but aren’t defined as the largest block, and “the smallest category” isn’t a standard way to classify costs.