An airline passenger is planning a trip that involves three connecting flights that leave from Airports A, B, and C, respectively. The first flight leaves Airport A every hour, beginning at 8:00 a.m., and arrives at Airport B $$2\frac{1}{2}$$ hours later. The second flight leaves Airport B every 20 minutes, beginning at 8:00 a.m., and arrives at Airport C $$1\frac{1}{6}$$ hours later. The third flight leaves Airport C every hour, beginning at 8:45 a.m. What is the $$\underline {least}$$ total amount of time the passenger must spend between flights if all flights keep to their schedules?

A:25 min

B:1 hr 5 min

C:1 hr 15 min

D:2 hr 20 min

E:3 hr 40 min