"Let's try that posture again so we can see how you can avoid hurting your neck." This is the best answer, because this is this the nicest way for Randall to inform his friend of his bad posture without discouraging the friend.
Answer:
have you done anything that bothered her lately?
Explanation:
The answer to your question is,
A. Nervous
-Mabel <3
Answer:
C. The cerebellum
Explanation:
The cerebellum which is in the back of your brain controls balance, coordination, fine muscle control, posture, and equilibrium