Breakdown of the Argument:
First Boldface Portion: "Many citizens of the communities around the bay have hailed this move, believing that a decrease in sharks will lead to an increase in all smaller fish, including the endangered Green-Gilled Silverfish..."
This is an opinion expressed by citizens who believe that decreasing sharks will result in more smaller fish, including the endangered Silverfish.
Second Boldface Portion: "Ecologists, though, disagree, pointing out that a decrease in sharks will lead to a surge in Sea Lions, which are the principal predator of the Green-Gilled Silverfish."
This is a counterpoint provided by ecologists, which presents evidence that contradicts the citizens' opinion. Ecologists argue that fewer sharks will lead to more Sea Lions, which prey on the endangered Silverfish.
Analyzing Each Option:
(A) The first provides support for the conclusion of the argument; the second states that conclusion.
This option is incorrect because the first boldface is not supporting the conclusion. The second boldface does not state a conclusion but rather presents evidence contrary to the citizens’ belief.
(B) The first describes evidence that has been taken as supporting a conclusion; the second states a contrary conclusion that is the main conclusion of the argument.
This is incorrect because the first boldface is not evidence supporting the conclusion but rather the citizens’ opinion. The second boldface does not state the argument's main conclusion; it presents contradictory evidence.
(C) The first is an opinion that the argument opposes; the second is evidence inconsistent with the conclusion of the argument.
This is correct. The first boldface is an opinion that the argument seeks to oppose (the belief of the citizens). The second boldface provides evidence that contradicts the citizens’ belief and is inconsistent with their conclusion.(D) The first describes the circumstances that the argument as a whole seeks to explain; the second gives the explanation that the argument seeks to establish.
This is incorrect because the first boldface is not merely describing circumstances; it presents an opinion. The second boldface does not establish the explanation but provides contradictory evidence.
(E) The first describes the circumstances that the argument as a whole seeks to explain; the second provides evidence in support of the explanation that the argument seeks to establish.
This is incorrect because the second boldface is not providing supporting evidence for the argument's explanation. Instead, it presents evidence contradicting the first boldface.
Correct Answer: C