In which of the following ways is natural selection not analogous to artificial selection?

• A. With natural selection "picking" is due to the fit of an organism with its environment; whereas in artificial selection, the breeder "picks" which organisms will breed.
• B. Natural selection depends upon the presence of variation, artificial selection does not.
• C. Natural selection occurs within populations, artificial selection does not.
• D. There is a limit to how much change can be brought about by natural selection, no such limit exists for artificial selection.