please answer all 4 multiple choice questions

Ace Manufacturing identifies the following activities and drivers for its operations: Activity Moving Materials Machining Activity Driver Number of moves Machine hours Driver Quantity 300 10,000 Ace estimates Moving Materials and Machining will cost $2,700,000 and $2,000,000 respectively. Ace's activity rates are: a. $9 per move and $20 per machine hour. b. $900 per move and $2,000 per machine hour. c. $90 per move and $2 per machine hour. d. $9,000 per move and $200 per machine hour. Activity-based customer costing: a. is not useful for companies with a JIT (just-in-time) structure. b. is not useful for companies with only one product. c. has customers as cost objects. Od. has a single driver for all customers. A key component of activity-based costing is: a. calculating single activity rates for all activities. O b. determining a single cost driver for all activities. c. identifying the direct costs in a manufacturing environment. d. assigning costs and overheads to activities. The proportion of each activity used by a product is called: a. consumption ratio. b. overhead rate. O c. product ratio. O d. facility rate