14. Sound can damage our ears. How can we protect our ears from getting damaged by sound?

1. Keep away from sound with highest pitch and frequency.
2. Lessen the loudness of the source of sound.
3. Stay away from high amplitude sound that carries large energy.

A. 1 and 2 only.
B. 1 and 3 only.
C. 2 and 3 only.
D. 1,2and 3​