A Suburban Specialty Restaurant Has Developed a Single Drive-Thru Window

Multiple Choice

A suburban specialty restaurant has developed a single drive-thru window.Customers order,pay,and pick up their food at the same window.Arrivals follow a Poisson distribution,while service times follow an exponential distribution.What type of queuing model is exhibited in this problem?

A) M/M/1
B) M/M/2
C) M/D/2
D) M/D/1
E) M/G/1