He feels disgusted by the wasteful nature of war.
Hope this helps!
The correct answer is: Inventions.
Copyrights can apply to art, literature, and music. But when it comes to inventions, it is called "patent." If a product or invention was patented by an inventor, he owns all the rights including the manufacturing, production, and distribution.
The sentence that uses the underlined word correctly is D) The school council used multiple media to advertise the prom.
The plural of medium is media, if you are referring to TV, or radio, etc.
Mediums are people who can speak to ghosts.