(20 points!) (brainliest) please help <3 The cavity contains small bones that transmit vibrations through the cochlea to the brain.

A. tympanic
B. orbital
C. cranial
D. oral

part A is the answer

Explanation:

The tympanic cavity is an air chamber; it contains a chain of movable bones which transmit the vibrations of the tympanic membrane across the cavity to the middle ear.

b. lithosphere, asthenosphere, mesosphere   is the answer most likely

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