Final answer:
Auditory receptors are located on the basilar membrane and consist of inner and outer hair cells, which play roles in detecting and fine-tuning sound respectively. Option A.
Step-by-step explanation:
The auditory receptors are indeed located on the basilar membrane in the inner ear, as part of the organ of Corti. The receptors are the inner hair cells, which operate as the primary auditory receptors, and outer hair cells, which help in fine-tuning the sound.
These hair cells have projections called stereocilia that are in contact with or embedded in the tectorial membrane.
The movement of sound waves through the ear causes the basilar membrane to vibrate, and these vibrations bend the stereocilia attached to the hair cells, which triggers an electrical signal that is sent to the brain via the cochlear nerve. So Option A.