Critical Reasoning (CR) | Re: Two decades after the Emerald River Dam was built, none of

Here, we are supposed to strengthen the hypothesis - Sharply Rising Water temperatures trigger reproduction cycle.

However, Option A just highlights that reproduction is happening because the temperature range is 50 degrees. It doesn't imply that it is the SHARPLY RISING TEMPERATURE that is causing the reproduction. It may be the SHARP REDUCTION in temperature that triggers the reproduction cycle, or it may be a particular temperature which triggers the reproduction(which the current 6 degrees
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