Help help help help help me ASAP

Explanation:

Nonfiction books are grouped together by subject to make it easier to find a book related to a specific topic. The system that most libraries use to organize books was invented by Melvil Dewey and it is called the Dewey Decimal System. Each book is assigned a three-digit call number based on what the book is about.

D.

Explanation:

Structure is the correct answer as all of the other answers do not make sense in the context of the question.

answer: i looked it up

explanation: in 1955 in montgomery, alabama, a girl refused to give up her seat on a public bus. the girl was black, and the passenger looking to take her seat was white. this is a familiar tale, but it's not about rosa parks. the girl in the story is a 15-year-old high school student named claudette colvin, and this act of defiance occurred nine months before rosa parks did the same thing. colvin was arrested, and her case is what led to the u.s. supreme court's order for the desegregation of alabama's bus system. so, why don't we know colvin's name? "later i had a child born out of wedlock; i became pregnant when i was 16," colvin says. "and i didn't fit the image either, of, you know, someone they would want to show off.