Access control at many businesses and organizations is provided by which allow only authorized individuals to enter an office building, punch in or out of work, or access the company network via an access card or a fingerprint or hand scan.

Which of the following represents an unlimited queue? a. toll booth serving automobiles on the interstateb. drive through lane at a fast food restaurantc. faculty office with limited seating during office hoursd. restaurant with no outside seating and limited capacity due to fire departments restrictionse. small barbershop with only 5 chairs for waiting customers