For the first two choices, to <em>cause,</em> the word wouldn't have the suffix "tion." and Elation means "great happiness or exhilaration," so choice C wouldn't be correct either. D is the most appropriate answer.
It would be the third answer “We are reading Bridge to Terabithia by Kathrine Paterson” because of the everything that needs to be capitalize is capitalized and punctuation is right