Consider a bank which has three tellers operating in parallel, as depicted below. Each of the three tellers takes a different amount of time to process each customer - teller A takes 5 minutes, B takes 8 minutes, and teller C takes 10 minutes. Assume each teller handles 1 customer at a time. What is the throughput time for customers being routed to teller C (in minutes)? Pick the closest answer. 2 4 6 8 10 12 14