There is no such thing as World of the Wars--
But there is such thing as War of the Worlds.
War of the Worlds is a Sci-Fi novel about Martians coming down to Earth and reeking havoc and chaos on everything.
<em>She resents them going off war </em>
Hi there!
The answer is C. reserved powers.
Hope this helps !
Yes, commas are used for clauses that help to provide a fuller picture, even when not necessary. Dashes can be used for a similar purpose as they are used here, but i don't believe it's appropriate in this sentence. Parentheses can only be used for information that can be completely written off without having any effect on the sentence.