Which of the sentences below best expresses the essential information in the highlighted sentence in the passage? Incorrect choices change the meaning in important ways or leave out essential information. A. Climate change caused by human activity is the main reason for the increase in fires over the past 30 years B. While human activity is definitely considered a factor, foresters are still debating whether climate plays a role in the recent increase in fires. C. For complicated reasons, over the past 30 years there has been an increase in the number of fires that take place during hot, dry summers. D. Both climate change and human activities are responsible for the recent increase in forest fires, although the contributions of those factors are still not agreed on.