Assertion :Bats and whales are classified as mammals. Reason: Bats and whales are four chambered heart.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
Bats and Whales are mammals as well as both of them have 4 chambered hearts.
The reason is not the correct explanation for the assertion because mammals aren't the only organisms having 4 chambered hearts.
Avians or birds also have 4 chambered hearts.
So the correct answer is 'Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion'.

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