Rocket Racer builds 200,000 go-carts a year and purchases the motors for these carts for $850 each. Ordering costs are $1,040, and Rocket Racer's inventory carrying costs average 15% of the inventory value. What is the total inventory costs for an inventory order size of 4000? Question 19Answer a. $307,000 b. $255,000 c. $52,000 d. $145,000