单选题
The author focuses primarily on
- (A) presenting two competing scientific theories for the cause of post-industrial climate change and evaluating the body of evidence behind each one
- (B) giving a brief overview of some recent scientific developments in solar physics and explaining their possible implications for future research
- (C) discussing the successes in linking terrestrial phenomena with solar activity and indicating how they may have an impact on preventing further climate change
- (D) pointing out the success of a certain line of scientific inquiry into the terrestrial effects of solar activity while qualifying its successes with regard to climate change