Question 8 1 Point Degan routinely drove the 400-mile round trip to his favorite grocery store to stock up on bread, which cost $1.50 per loaf. Running out would be disastrous - an unplanned trip to this store would mean a custom order that would run $7.75 per loaf. Overstocking wasn't a big issue, he could sell it to his teaching partner for $0.10 per loaf. What is Degan's optimal service level on his next trip to the store? (A) 18.3% B 17.2% 82.8% D 81.7%