Assertion (A): Sound is produced by larynx.
Reason (R): Larynx is a made up of cartilaginous box which surrounds a pair of vocal cords.
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.