He feels disgusted by the wasteful nature of war.
Hope this helps!
The correct answer is C.
The question was answered by the helper (passive).
The heper answered the question (active).
Elusive, to be missing or hard to find
Main Idea: The main idea is that tigers are going extinct but now acts are being done to help this from happening.
SD1: "A study released that the world's wild tiger population has risen for the first time in century"
I can't figure out the other 2 details.
Sorry.