Which of the following could prevent earmuffs from providing your ears good protection from noise?

a. all of the answers choices are correct
b. ear rings
c. eye glasses
d. hair

The correct answer is A.

Ear muffs are supposed to sit flat against your ears to protect your ears from noise. Ear rings stick out from your ears and could slightly lift the ear muffs creating a gap between your ears and the ear muffs. Eye glasses have stems/arms that sit over the top of your ears that could also lift the ear muffs. Your hair could interfere with the ear muffs if it is over your ears.