Final answer:
The cochlea contains receptors that transduce the mechanical waves of sound into electrical signals which are sent to the brain for interpretation.
Step-by-step explanation:
The cochlea contains receptors for transduction of mechanical waves to produce electrical signals. During the process of hearing, sound waves enter the ear and are transmitted as mechanical waves through the middle ear, where they eventually reach the cochlea of the inner ear. Inside the cochlea, the organ of Corti, which is the actual structure that contains hair cells, plays a critical role in sensory transduction. These hair cells possess stereocilia which convert the mechanical energy of sound waves into electrochemical signals. These signals are then transmitted as electrical signals through the auditory nerve to the brain for interpretation. Thus, the correct answer to the question is b) cochlea.