Main idea: What teenagers should know about hearing loss -Volume should be turned down while listening to music devices with earphones
-Damage to eardrums cannot be repaired
-.
Which of the following completes the blank line in the informal outline of the passage?
A- going to concerts at an early age is not a good idea
B-overexposure to loud cafeterias should be avoided
C-visiting a hearing specialist is recommended
D-genetics play a role