What is the difference between sensorineural and conductive hearing loss?

Sensorineural hearing loss (SNHL) is due to damage in the inner ear: in sensory hair cells of the cochlea, or vestibulocochlear nerve. It is usually permanent. It can be genetic, congenital or acquired (infection, trauma, noise, etc.)

Conductive hearing loss (CHL) is due to a mechanical problems in middle ear, tympanic membrane damage, an outer ear obstruction, or defects in the outer ears wall. It is usually reversible.  

When performing a Weber test with a tuning fork, the sound localizes to normal ear in SNHL and to the affected ear in CHL.  

Rinne test (which evaluates air and bone conduction) is positive in SNHL and negative in CHL.

having the certification could make the person more required to do a certain thing then another.this could also lead to different job offers or opportunities.

answer:

i believe the answer is d).

explanation:

i think this is because you are tearing apart the muscle, and then when you eat, the muscle re-heals, making itself even stronger.

edit: i put b) before but i meant to put d). sorry for the incorrect answer.