Reynoso Corporation manufactures titanium and aluminum tennis racquets. Reynoso's total overhead costs consist of assembly costs and inspection costs. The following information is available: Cost Titanium Aluminum Total Cost Assembly 400 mach. hours 600 mach. hours $60,000 Inspections 350 150 $100,000 2,100 labor hours 1,900 labor hours Reynoso is considering switching from one overhead rate based on labor hours to activity-based costing. Using activity-based costing, how much assembly cost is assigned to titanium racquets?

A. $31,500. B. $30,000. C. $36,000. D. $24,000.