Directions: In the following questions, a statement of assertion is followed by a statement of reason.
Mark the correct choice as:
(1) Both Assertion (A) and Reason (R) are True and the Reason (R) is a correct explanation of the Assertion (A).
(2) Both Assertion (A) and Reason (R) are True but Reason \( (R) \) is not a correct explanation of the Assertion (A).
(3) Assertion (A) is True but the Reason (R) is False.
(4) Assertion (A) is False but the Reason (R) is True.
Assertion (A): There is a negative pressure in the lungs with respect to atmospheric pressure during inspiration.
Reason (R): Relaxation of the diaphragm and the intercostal muscles returns the diaphragm and sternum to their normal positions.
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