Final answer:
The correct option is 3)Temporal. The temporal bone contains the bony labyrinth, which is part of the inner ear and essential for hearing and balance.
Step-by-step explanation:
The cranial bone that contains the bony labyrinth is the temporal bone. The temporal bone is part of the brain case and contributes to the side of the skull and the base of the cranial cavity. It houses essential structures related to hearing and balance, including the bony labyrinth that is part of the inner ear. The bony labyrinth is a complex system of passages comprised of the cochlea, vestibule, and semicircular canals, which are essential for hearing and balance. This is contrasted with the other cranial bones mentioned, such as the sphenoid and ethmoid bones, which contribute to the structure of the skull but do not contain the bony labyrinth.