During the voyage, Darwin collected a good deal of information about living things, which ______led to his famous book "On the Origin of Species".

A．feeling uncomfortably hot on the equator
B．flying over the North Pole
C．flying over the equator
D．making homes on the equator

A. There is nothing at present, but look in a week.
B. It’ s not the fight time. See you later.
C. I’m wondering what you can do for us.
D. We need a lot of part-timers but not you.