What type of cost is each?

Onini, Inc. produces one product with two production levels: 20,000 units and 80,000 units. At each production level, Onini's per-unit costs for Costs A, B, and C are: Cost A (per unit) Cost B (per unit) Cost C (per unit) Production = 20,000 $12.00 $15.00 $20.00 Production = 80,000 $12.00 $11.25 $5.00 What type of cost is each? Cost A is variable, Cost B is mixed, and Cost C is fixed. Cost A is fixed, Cost B is variable, and Cost C is mixed Cost A s variable, Cost B is fixed, and Cost C is mixed. Cost A is fixed, Cost B is mixed, and Cost C is variable