Answer: d is the answer
Explanation becsaue it is
Because nerves are the transmitters of messages from the brain to the structure. And all major nerves are found in the spinal cord leading out to the rest of the body. If the nervous tissue is damaged then the brain can no longer send messages to those parts of the body, and they can no longer react causing paralysis
Tonia is not afraid to show her love for Robert but she doesn't want to shout it out clear as day, meanwhile Robert on the other hand isn't so comfortable to act how Tonia is even tough he likes her too, so basically she's more comfterable while he's a little more shy. Im not sure if this is correct but hope it helps a little