What enables natural selection to occur?
Options:
- (A) environment
- (B) mutations
- (C) competition
- (D) relocation
- (E) Darwin
- (F) evolutionary development
- (G) root growth
- (H) research Let's solve this problem gradually.
Mutations are essential for evolution to occur. Natural selection is the mechanism of evolution. Mutations allow for natural selection to occur. So the final answer is (B).