Which of the Following Cannot Be an Example of Evolution

Which of the following cannot be an example of evolution?

A) As a consequence of legislation promoting cleaner air, the frequency of black peppered moths in Europe has decreased in the last half century.
B) After repeated exposure to high temperatures, an individual turtle can tolerate heat more successfully.
C) As a consequence of climate change, robins in the northeastern United States sing earlier in the spring than they did two decades ago.
D) Due to a genetic bottleneck, the frequency of one allele has increased in a population of Drosophila subobscura.