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Assertion (A):The walls of atria are thi...

Assertion (A):The walls of atria are thicker than those of the ventricles..
Reason:Ventricles have to pump blood into various organs at high pressure.

A

Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).

B

Both Assertion (A) and Reason (R) are true , but Reason (R) is not the correct explanation of the Assertion (A).

C

Assertion (A) is true, but Reason (R) is false.

D

Assertion (A) is false, but Reason (R) is true.

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