A small number of scientists disagree that global climate change is caused by human activity. However, scientific consensus supports the idea that human activity is affecting climate. This is possible because

scientific consensus does not require the agreement of all scientists.
the idea is an emerging scientific idea that has not been tested repeatedly.
the idea that global climate change is caused by human activity is a scientific theory.
scientific consensus does not require a large number of scientists to support an idea.

Question

A small number of scientists disagree that global climate change is caused by human activity. However, scientific consensus supports the idea that human activity is affecting climate. This is possible because

scientific consensus does not require the agreement of all scientists.
the idea is an emerging scientific idea that has not been tested repeatedly.
the idea that global climate change is caused by human activity is a scientific theory.
scientific consensus does not require a large number of scientists to support an idea.

anonymous · Answer

Well, because it is science and humans are humans, we will naturally disagree on things due to our own personal prejudices. For example, some Christian scientists may argue that Evolution is not true because Creationism can explain things just as well. However, the majority of scientists go with Evolution because it makes sense, and that it has been repeatedly tested and confirmed in experimentation. Therefore, I would have to go with A.