HELP ME PLEASE !!!!!!!

Read the paragraph, and answer the question. (1) Other artists use cars to create their art. (2) Some paint or decorate the cars themselves. (3) One art car had hundreds of plastic dinosaurs glued onto it! (4) A Nebraskan artist built Carhenge, a replica of Stonehenge, out of old cars.

What role do sentences 2, 3, and 4 play in this paragraph?

OA) They get the reader's attention.

OB) They support the topic sentence.

C. they give background information about the topic.

D. they tell the reader what to take away from the text . ​