Which of the Following Is Among the Likely Scientific Arguments

Which of the following is among the likely scientific arguments made by a climate scientist who opposes the idea of a human role in global warming?

A) Current weather patterns are part of cyclical changes throughout history.
B) Humans have not significantly increased CO₂ emissions over the last two centuries.
C) There is no significant evidence that global temperatures have been rising over the last hundred years.
D) Most climate scientists are motivated by politics, not science.