The answer to your rather difficult question is paper. only certain trees make gum rubber, only certain trees make syrup and none of them make turpentine( an extremely flammable substance. the only thing you can get from almost every tree is paper.
C. Lined up along the center of the cell
I always remembered Metaphase as the chromosomes saying “meet me in the middle”
The answer would be the second choice, "Central Nervous System"