What Is One Piece of Scientific Evidence for Human Contributions

What is one piece of scientific evidence for human contributions to global climate change?

A) Humans are responsible for every possible change to the planet, since humans are the only intelligent life forms.
B) Humans deplete the ozone layer, allowing more ultraviolet radiation to reach the Earth.
C) Climate models show that extra carbon dioxide contributed by humans is enough to match the data.
D) There is no compelling evidence for human contributions to climate change; the correlations do not show what causes them.
E) Humans burn forests, drive cars, and build power plants that directly heat the planet.