Question

Assertion : The left atrium contracts when it is collecting the oxygen rich blood.
Reason: Contraction aids in the collection of blood in the same chamber.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.​

Answer 1

Explanation:

(b) is correct mark me as brainlist pls

Answer 2

Answer:

i think it is both is wrong

Explanation: