Which of the following could prevent ear muffs from providing your ears good protection from noise

Hello. This question is incomplete. The complete question would be:

"Which of the following could prevent ear muffs from providing your ears good protection from noise

A- All of the answer choices are correct  

B- Earrings can make the earmuffs uncomfortable, or make them move

C- Eye glasses can keep the muffs from completely covering your ears, and

D- hair gets in the way."

A- All of the answer choices are correct because

Explanation:

Basically, earmuffs are accessories designed to protect the user from outside noise. The protection usually comes from a material that absorbs sound waves, thus decreasing sound perception by 20 to 30 decibels. These protectors are effective in preventing temporary hearing loss and other problems such as ringing in the ear. However, some factors may impede or diminish the protection of ear protectors. Among these factors we can mention: