Official Solution:
To address the decline in marine biodiversity, a group of environmental scientists proposes creating large offshore marine reserves. They claim these reserves would greatly reduce human impact on marine ecosystems. Proponents further contend that establishing the reserves will cut local fishing pressure, thereby boosting marine populations. Nevertheless, the reserves could take years to designate and police, a delay that may allow habitats to deteriorate beyond recovery and nullify much of the intended benefit.
In the argument given, the two bolded portions play which of the following roles?
A. The first presents a plan the author ultimately rejects; the second offers evidence that undermines that plan.
B. The first introduces an objection to the scientists’ plan; the second supplies evidence for that objection.
C. The first presents a plan to solve the problem; the second is supporting evidence for that plan.
D. The first supplies contextual background; the second supports that context.
E. The first outlines a plan; the second states the author’s conclusion about the plan.
Argument Analysis: - The first bolded portion, “
a group of environmental scientists proposes creating large offshore marine reserves,” states a proposed solution to the problem of declining marine biodiversity. - The second bolded portion, “
Proponents further contend that establishing the reserves will cut local fishing pressure, thereby boosting marine populations,” presents a supporting reason offered by the proposal’s advocates. The author concedes this benefit but later questions whether it will be enough, given likely delays in designating and policing the reserves.
A) The first presents a plan the author ultimately rejects; the second offers evidence that undermines that plan. - Incorrect: The second boldface statement is not evidence against the plan; it is evidence advanced by the plan’s supporters in its favor. The author only challenges the plan afterward, by citing potential implementation delays.
B) The first introduces an objection to the scientists’ plan; the second supplies evidence for that objection. - Incorrect: The first boldface is not an objection; it is the plan itself. The second boldface supports the plan, not any objection to it.
C) The first presents a plan to solve the problem; the second is supporting evidence for that plan. - Correct: This choice captures both roles accurately—the first boldface introduces the plan, and the second provides a benefit cited in its support. The argument then questions whether that benefit will materialize fully because of enforcement delays.
D) The first supplies contextual background; the second supports that context. - Incorrect: The first boldface is not mere background—it is the central proposal under discussion. Likewise, the second boldface supports the proposal, not background information.
E) The first outlines a plan; the second states the author’s conclusion about the plan. - Incorrect: The second boldface is not the author’s conclusion; it is a benefit asserted by the plan’s proponents. The author’s conclusion is that delays could undermine the plan’s effectiveness, which appears after the boldface statements.
Answer: C