I would presume that the one that has to do with academic skills such as thinking. I think its researching. Hope it helps :)
Answer: When burning oil, coal, and gas, we don't just meet our energy needs—we drive the current global warming crisis as well. Fossil fuels produce large quantities of carbon dioxide when burned. Carbon emissions trap heat in the atmosphere and lead to climate change.
Explanation:
It is d? I think that's right.
You put the italics or in which in some cases you you put the italics and you must put who said it