(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
e) A and R are false


 Assertion: bats and whales are classified as mammals
Reason: bats and whales have four chambered heart

 

Dear student, 

The correct answer is (b) Bothreason and assertion are correct but reason is not the correct explanation of the assertion.
Bat and whale are considered mammals because they give birth to young ones and provide them with milk.

Regards,

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