Which best describes evolution?

A. It is a theory backed up by scientific evidence.

B. It is guess about how organisms change.

C. It is a hypothesis that is not supported by scientific evidence.

D. It is a hunch that animals change over time

A. It is a theory backed up by scientific evidence.

Explanation:

Charles Darwin had written a book called "On the Origins of Species" in 1859. It was based on the theory of evolution through natural selection. Evolution by natural selection is one of the best substantiated theories in the history of science, supported by evidence from a wide variety of scientific disciplines, including paleontology, geology, genetics and developmental biology.

Your answer is option C.