Critical Reasoning

Many winemakers use cork stoppers; but cork stoppers can leak, crumble, or become moldy, so that
those winemakers must often discard a significant proportion of their inventory of bottled wine.
Bottlemaster plastic stoppers, which cannot leak, crumble, or mold, have long been available to
winemakers, at a price slightly higher than that of traditional cork stoppers. Cork prices, however,
are expected to rise dramatically in the near future. Clearly, therefore, winemakers who still use
cork but wish to keep production costs from rising will be forced to reconsider plastic stoppers.
And since the wine-buying public's association of plastic stoppers with poor-quality wine is
weakening, there is an excellent chance that the Bottlemaster plastic stopper will gain an
increased share of the marked for wine-bottle stoppers.

In the argument given, the two portions in boldface play which of the following roles?

A. The first is a judgment that has been advanced in support of a position that the argument
opposes; the second is the main conclusion of the argument.
B. The first is a judgment that has been advanced in support of a position that the argument
opposes; the second is a conclusion drawn in order to support the main conclusion of the
argument.
C. The first is the main conclusion of the argument; the second provides evidence in support of
that main conclusion.
D. The first is the main conclusion of the argument; the second is a restatement of that main
conclusion.
E. The first is a conclusion drawn in order to support the main conclusion of the argument; the
second is that main conclusion.

Can some experts help me identify the best Option needed in the argument?

OA E