Scientist: After a comprehensive study, our panel has concluded that
the evidence for a warming of the global climate system is
unequivocal.
We have also found that more than 90% of global warming observed in the past 50 years has been caused by emissions
of greenhouse gases from human activity. It is unlikely that the effects of this damaging disregard for the environment can be reversed.
It is therefore our recommendation that
preparations for global climate change begin now.The bolded phrases in the passage above play which of the following roles in the argument?
A. The first phrase states a conclusion, and the second phrase offers support for that conclusion.
B. The first phrase states a premise on which the conclusion is based, and the second phrase contains an assumption necessary for
that premise.
C. The first phrase offers advice, and the second phrase offers a recommendation.
D. The first phrase is a premise on which a conclusion is based, and the second phrase contains the conclusion.
E. The first phrase states a conclusion, and the second phrase contains another, unrelated, conclusion.