How Fast Does Evolution by Natural Selection Take Place

Multiple Choice

How fast does evolution by natural selection take place?

A) It is such a slow process that a single adaptation requires millions of years.
B) It is so slow that it cannot be seen in the fossil record.
C) It is fast enough that several new species can evolve from other forms in a few million years.
D) It is so rapid that new species often evolve in a matter of decades.