Which of the Following Is Correct Regarding Global Warming

Multiple Choice

Which of the following is correct regarding global warming?

A) The idea is a hoax.
B) Global warming is occurring, but the rate is so slow that it will be hundreds of years before any significant problems arise.
C) There is agreement that global warming is caused by increased air pollution that is a result of human activity.
D) There is agreement that global warming is happening, but there is a debate about whether the warming is natural or caused by human activity.
E) Global warming will have a negative effect on everyone.