Early in the twentieth century, Lake Konfa became very polluted. Recently fish populations have recovered as release of industrial pollutants has declined and the lake’s waters have become cleaner. Fears are now being voiced that the planned construction of an oil pipeline across the lake’s bottom might revive pollution and cause the fish population to decline again. However, a technology for
preventing leaks is being installed. Therefore, provided this technology is effective, those fears are groundless.

The argument depends on assuming which of the following?


A. Apart from development related to the pipeline, there will be no new industrial development around the lake that will create renewed pollution in its waters.

B.There is no reason to believe that the leak-preventing technology would be ineffective when installed in the pipeline in Lake Konfa.

C.The bottom of the lake does not contain toxic remnants of earlier pollution that will be stirred into the water by pipeline construction.

D.Damage to the lake’s fish populations would be the only harm that a leak of oil from the pipeline would cause.

E.The species of fish that are present in Lake Konfanow are the same as those that were in the lake before it was affected by pollution.
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was stuck between C and D. could you explain D?
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Sure. D states "Damage to the lake’s fish populations would be the only harm that a leak of oil from the pipeline would cause." But actually nowhere in the argument it is assumed so or mentioned so. leak of oil may pollute water and harm people, birds or animals drinking water from it (if at all).. but do we care? its irrelavant to the argument -which concerns fish population.

Hope it helps!
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Black Friday Debrief
Most important component: Cast you vote

This one can be said to be a proposal passage

making the pipe will not makes the pollution.

prethink for proposal: no bad agent the the process to be happen, or something needed to bridge the gap

in this case, there is not bad agent.

go to answer choices, C look closest. use negation test. It is ok,

I DO NOT READ THE REMAINING CHOICES. (pls, comment on my not reading the reamaining choices. Is it dangerous? )