Kramer Company manufactures coffee tables and uses an activity-based costing system to allocate all manufacturing conversion costs. Each coffee tables consists of 20 separate parts totaling $240 in direct materials, and requires 5.0 hours of machine time to produce. Additional information follows: Activity Materials handling Machining Assembling Packaging Allocation Base Number of parts Machine hours Number of parts Number of finished units Cost Allocation Rate $2.00 per part $2.75 per machine hour $1.00 per part $3.00 per finished unit What is the cost of assembling per coffee table? Select one: A. $15.00 B. $40.00 C. $20.00 D. $7.75