A boy was riding a horse for the first time. The horse ran more quickly than he expected, and he fell off, hitting his head on a rock. A doctor’s exam revealed that he was okay, except for a few scrapes. What protected his brain from injury?

his spine, which lines the vertebral cavity

his skull, which encloses the cranial cavity

his abdominal cavity, which is filled with liquid

his spinal cord, which sends the brain messages

His skull which encloses the cranial cavity.

The only logical answer here is B, or his skull. It's the " rock " hard bone  that protects our brain, the rest of the options are simply randomly picked body parts, such as the spine ( located running down our back ) and spinal cord.

I hope this helps just a tad :^)

the role of the practice manager is to ensure that all communucation is appropriate, respectful, timely, and compliant

explanation: