The correct answer is D. A concrete example is one that provides a clear situation in which the abstract idea, in this case the author's argument, is exemplified. This option not only prepares the reader for the example, but also gives specific details about what could be regulated.
Part A:
A - Wind power is an underused resource that has the potential to provide the energy to power electricity for the entire country.
Part B:
Effective; the author acknowledges the counterclaim and explains the U.S. Department of Energy’s plan to increase the use of wind energy in the future.
Answer:
you are right 1 is d and 2 is c
