activity-based costing to assign overhead costs to Walsh Corporation uses products. Overhead costs have already been allocated to the company's three activity cost pools as follows: Processing, $27,200; Supervising, $9,300; and Other, $9,500. Processing costs are assigned to products using machine-hours (MHs) and Supervising costs are assigned to products using the number of batches. The costs in the Other activity cost pool are not assigned to products. Activity data appear below: MHs (Processing) Batches (Supervising) Product 06 9,200 500 Product D7 10,800 1,500 Total 20,000 2,000 The activity rate for the Processing activity cost pool under activity-based costing is closest to: Select one: a. $1.36 per MH b. $1.35 per MH c. $0.40 per MH d. $2.30 per MH