Answer:
The desire to fight for power is an instinct.
Explanation: This is the answer because he is killing many things for not very good reasons. Therefore he is just killing for power.
Answer:
Keira is in the band, and she practices her trumpet every day.
Explanation:
from what i think, i think its best if you use that choice. in this sentence chosen you have a comma to help give a stop in a sentence and right after the comma you have the word "and". i dont know if this make sense but i hope it does :)