No the last one is for a question, the proper punctuation would be a period.
<span>Auggies least favorite subject in the book wonder is music-p23. Wonder is a children's novel by Raquel Jaramillo, under the pen name of R. J. Palacio. The book is about August "Auggie" Pullman, a fifth grade boy living in Manhattan, who has an extremely rare medical facial deformity.</span>
A would be best answer, it's purpose was to remember the soldiers lost and what they were fighting for.