11. Consider the following statements in connection with the functions of the blood vessels marked A and B in the diagram of a human heart as shown.

The options from the question - 11. Consider the following statements in connection with the functions of the blood vessels marked A and B in the diagram of a human heart as shown.

(i) Blood vessel A - It carries Carbon dioxide rich blood to the lungs.
(ii) Blood vessel B - It carries Oxygen rich blood from the lungs.
(iii) Blood Vessel B - Left atrium relaxes as it receives blood from this blood vessel.
(iv) Blood Vessel A - Right atrium has thick muscular wall as it has to pump blood to this blood vessel.

• A. (i) and (ii) only
• B. (ii) and (iii) only
• C. (ii), (iii) and (iv)
• D. (i), (ii) and (iii)

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