What evidence does the author provide to prove a downside of charcoal production? A. The author explains how people used to cut down many trees to feed wasteful fires which led to deforestation in some areas.

B. The author explains how carbon extracted from wood to make charcoal becomes a harmful greenhouse gas in the atmosphere.

C. The author explains how people used to unknowingly breathe in toxic fumes and dusty ashes of charcoal as it burned in open ovens.

D. The author explains how charcoal production is harmful to animals because animal bones are burned in order to be turned into charcoal.