Answer:
3. = C. , 4 = C.
Explanation:
If you mean 3 and 4:
The trees extended high in the sky is not figurative language. It is simply stating that the trees are tall.
A Metaphor compares two things without using like or as. A simile compares two things using like or as. Giving human traits to an object is personification. And using an object or character to represent is a symbol, I believe.
Also, 2 is wrong. 2 should be B, as stated in the earlier paragraph.