Im stuck on the second part of question

Question

The fluid filled organ of the inner ear has tiny (A) __________ cells that release neurotransmitters. Different sound frequencies affect different groups of these cells, and louder sounds stimulate more of these cells in a given region. This stimulation triggers nerve impulses in the (B) __________ nerve, which then carries the message to the brain.
The first answer is hair

Answer 1

Auditory.

Answer 2

Thank you I never wanted to take this class but it was mandatory and so diffrent on sophia learning