Answer:
B. Kat, who has a hard time with the daily school routine and prefers to do most of her studying later in the day; her parents also prefer to make their own decisions about her curriculum.
Explanation:
12. Stomach
14. Nerves
16. Stomach
18. The heart
20. Muscle
22. Lungs
That's my best guess.
Peer influences can affect you because you may want to fit in, so you do all the "trendy stuff" regardless of your original feelings.
