The vibrations picked up by the eardrum eventually reach three tiny bones called the ________, ________, and _________.
A. chain, anvil and shovel
B. horse, rider and stirrup
C. hammer, anvil, and stirrup
D. hammer, nail and board
A. chain, anvil and shovel
B. horse, rider and stirrup
C. hammer, anvil, and stirrup
D. hammer, nail and board