Question

charles darwin came up with this theory of \change over time\.
variation
evolution
genetic drift
gene flow
frequency
founder effect
natural selection
population bottleneck

Explanation:

Charles Darwin is known for the theory of evolution, which describes the change in species over time. Variation is a factor in evolution, genetic drift, gene flow, founder effect, population bottleneck are mechanisms or concepts related to evolution, and natural selection is a mechanism of evolution. But the overarching theory of "change over time" for species is evolution.

Answer:

B. Evolution