allocate manufacturing cowersion costs. Each chi consists of 10 separate parts totaling The St-N-Spin Corporation manufactures and assembles office che St-N-Snuses an activity-based costing system 5135 in direct materials, and requires 2 hours of machine time to produce. Additional information follow Activity Material handling Macturing Assembling Packaging Allocation Base Number of parts Machines Number of parts Number of the Cost Allocation Rate $175 at $2.00 bermachine $1 50 $6.75 pershed unit What is the cost of changechar O A $13.50 OB 5400 OC. $24.00 OD 520.00