The figure below details the process flow for two types of customers who enter Barbara's Boutique shop for customized dress alterations. After step T1, Type A customers proceed to step T2 and then to any of the three workstations at T3, followed by steps T4 and T7. After step T1, Type B customers proceed to Step T5 and then steps T6 and T7. The numbers in parentheses are the minutes it takes to process a customer.

The figure below details the process flow for two types of customers who enter Barbara's Boutique shop for customized dress alterations. After step T1, Type A customers proceed to step T2 and then to any of the three workstations at T3, followed by steps T4 and T7. After step T1, Type B customers proceed to Step T5 and then steps T6 and T7. The numbers in parentheses are the minutes takes to process customer. T3-a (16) T2 (13) T3-b (11) T4 (17) T3-C (13) T1 (13) Type A or B T7 T5 (17) T6 (23) in hour? Assume no customers are a. What is the capacity of Barbara's shop numbers of Type who can be waiting at steps T1 or T7. customers. (Enter your response rounded down to the next whole number.) b. If 40 percent of the customers are Type A customers and 60 percent are Type B customers, what is the average capacity of Barbara's shop in customers per hour? customers. (Enter your response rounded to two decimal places.) c. Assuming that the arrival rate is greater than five customers per hour, when would you expect Type A customers to experience waiting lines, assuming no Type B customers in the shop? O A. Steps T1, T2, and T4. OB. Steps T1, T2, T3, and T4. O C. Steps T3 and T4. OD. Step T3 only. Where would the Type B customers have to wait, assuming no Type A customers? A. Step T6 only. B. Steps T1 and T7. C. Steps T1, T5, and T6. D. Steps T6 and T7