Which of the Following Is Not a Human Impact on Atmospheric

Which of the following is not a human impact on atmospheric and oceanic circulation?

A) Melting sea ice in the Arctic leads to weakening of the jet stream.
B) Asian air pollution affects monsoonal wind flow.
C) ENSO affects global weather patterns and human lives.
D) Climate change may affect ocean currents and thermohaline circulation.
E) Climate change affects natural oscillations in circulation.