Which of the following explains how natural selection leads to evolution?

Question

A. Conditions in the environment reduce competition for resources within a species.

B. Helpful variations accumulate among surviving members of the species.

C. Overproduction provides food for stronger members of the species.

D. Environmental changes favor weaker members of the species.

My Answer:
B

Am I correct?

Answer 1

thats the right one!:)

Answer 2

Haha, thanks:D

Answer 3

I would say that the answer is b, although I'm not quite sure..