According to the theory of global warming which statement is the most likely reason for the current climate change?

If we could see your choices, it would better help us to help you.

Explanation:

But, if you are referring to the most widely accepted theory:

Anthropogenic (man-made) Global Warming, or AGW.  The theory states that man-made greenhouse gases, primarily carbon dioxide (CO2 ), are the predominant cause for the global warming that has occurred during the past 50 years.

i think the answer is b.

so whats the answer