Choose the best explanation of the difference between evolution and natural selection. a. evolution is the idea that species change over time, and natural selection is a mechanism by which evolution takes place. b. natural selection is the idea that species change over time, and evolution is the idea that our world changes over time. c. natural selection is the idea that species change over time, and evolution is the idea that the species' food source also changes over time. d. evolution is the idea that species change over time, and natural selection is the idea that nature changes over time.

The correct answer is A

The correct answer will be option A.

Explanation:

Evolution is a process which changes the characteristics of a species over several generations which changes species over time.

Natural selection is one of the mechanism by which species become adapted to their environment  and evolve over time.

Natural selection takes place at the genetic level as the genetic mutations beneficial to survival are passed on to next generations through reproduction which result in generation of new organisms.This causes species to change and diverge over time.

For e.g- Before industrial revolution white peppered moth dominated compared to dark brown moths as the trees were white and the brown moths were not able to hide themselves from predators but after industrial revolution due to darkening of trees white moths were not able to hide while brown were able to and dominated.

thus option A is correct.