In a large hospital with several operating rooms, ten people are each waiting for a 45 minute operation. The first operation starts at 8:00\:a.m., the second at 8:15\:a.m., and each of the other operations starts at 15 minute intervals thereafter. When does the last operation end?
Answer Choices
A. 10:15\:a.m.
B. 10:30\:a.m
C. 10:45\:a.m
D. 11:00\:a.m
E. 11:15\:a.m