Table 72 the Figure Above Shows the Process for Paying

Multiple Choice

Table 7.2 The figure above shows the process for paying tuition at a major university.Students are provided their bill for the next term for review,then routed to different tables for questions to be answered before finally paying their tuition at E.The numbers in parentheses are the time in minutes for each step of the process.
-Use the information in Table 7.2.What is the capacity for the A-B-D-E process route?

A) 10 students per hour
B) 6 student per hour
C) 3.5 students per hour
D) 2.9 students per hour