Assertion Reason Question:
Assertion (A) - The rhythmic beating of various chambers of the heart maintain circulation of blood.
Reason (R) - Pulse rate per minute indicates the rate of heart beat.
(i) Both A and R are true and R is the correct explanation of A.
(ii) Both A and R are true but R is not the correct explanation of A.
(iii) A is true but R is false.
(iv) A is false but R is true.
