Answer:
The most appropriate answer would be B. stapes.
The middle ear consists of a tympanic membrane and three bone namely malleus, incus, and stapes.
The outer ear transfers the vibrations to the tympanic membrane or eardrum. It then transfers and amplifies the vibrations through three bones.
Stapes or stirrups located at the end of the middle ear through which amplified vibrations are sent to the inner ear.