Official Answer Key & Detailed Solution
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Correct Answer: Option (C) — 1, 2 and 3
Concept & Option Breakdown
Standard Reference VerifiedItem 1 is correct: Many bat species hibernate in caves during winter to conserve energy when insects are scarce.
Item 2 is correct: Bears undergo winter dormancy/torpor (a form of hibernation) in dens, lowering metabolic rates.
Item 3 is correct: Many rodents (such as ground squirrels, marmots, and dormice) are classic deep hibernators.
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