A Dispatcher for an Airport Shuttle Averages Sending a Van

Multiple Choice

A dispatcher for an airport shuttle averages sending a van to the airport 2 times every 60 minutes.The distribution is Poisson,and the driver must take a 15-minute lunch break.The probability that he can finish lunch before getting a call is:

A) 0.1350.
B) 0.6065.
C) 0.3935.
D) 1.6490.
E) 0.8650.