The movement from public to private electricity utilities in multiple countries has resulted in supply disruptions and in higher prices for consumers. Properly understood, however, this phenomenon does not cast doubt on the economic principle that
privately-owned companies are generally more efficient than government-owned entities. Certain particularities of electricity as a commodity—including the impossibility of storing electricity, the inelasticity of demand for electricity, and the high barriers to entry for new producers—are unique obstacles to the creation of competitive electricity markets.
In the above argument, the
two portions in boldface play which of the following roles?
A. The first is a historical claim that the author rejects; the second is the basis for the author's rejection of that claim.
B. The first describes an apparent exception to a theory that the author accepts as true; the second is that theory.
C. The first is the basis for the author's critique of conventional economics; the second is the author's summary of conventional economic thought.
D. The first describes an event that the author believes to be unusual; the second is the author's explanation of why this unusual event occurred.
E. The first is a particular example of a broader trend; the second is that trend.