The correct answer to the complete sentence is <u>antagonism.</u>
Antagonism (noun) being by definition as an active hostility or opposition, as between unfriendly or conflicting groups can relate to this sentence since it mentions the two opposing groups as the Americans who thought we should stay out of World War II and those who thought we needed to stand up against dictatorship.
They lock her in the closet because they don't like her. They resent her for having a memory of the sun and by forcing her to miss it, they are getting even with her.
Post the options for a more accurate answer please!! :)
