CC Car Wash specializes in car cleaning services. The services offered by the company, the exact service time, and the resources needed for each of them are described in the table following: The company offers the following packages to their customers: - Package 1: Includes only car wash (service A). - Package 2: Includes car wash and waxing (services A and B). - Package 3: Car wash, waxing, and wheel cleaning (services A, B, and C). - Package 4: All four services (A, B, C, and D). Customers of CC Car Wash visit the station at a constant rate (you can ignore any effects of variability) of 50 customers per day. Of these customers, 30 percent buy Package 1, 30 percent buy Package 2, 15 percent buy Package 3, and 25 percent buy Package 4 . The mix does not change over the course of the day. The store operates 10 hours a day. What resource has the highest utilization rate? Input 1 for washing machine, input 2 for waxing machine, input 3 for employee at C, input 4 tor employee at D