Go Fly (GF), a startup airline, installed five self-serve kiosks to check in passengers at its Denver gate. In comparison to the five employees that were previously responsible for checking in passengers, the average processing time per customer is higher with the kiosks. In addition, customers are still trying to learn the menus in the kiosk, and some passengers just don’t quite get it: The coefficient of variation of the processing time is higher with the kiosks than with the employees. In terms of demand, the interarrival time of customers has decreased, but the coefficient of variation of interarrival times has not changed. Which of the following will happen regarding the average number of passengers waiting in line to check in with the kiosks relative to the average number when the employees did this task? 

a. It will decrease. 

b. It will stay the same. 

c. It will increase. 

d. It may decrease or increase.