Assertion (A): Normal exhalation during quiet breathing is an active process involving extensive muscle contraction
Reason (R): Passive exhalation results from the elastic recoil of the chest wall and lungs
In the light of above two statements, select the correct option
1. Both (A) and (R) are true and (R) is the correct explanation of (A)
2. Both (A) and (R) are true but (R) is not the correct explanation of (A)
3. (A) is true, but (R) is false
4. (A) is false, but (R) is true