Answer :
I believe that the best answer among the choices provided by the question is D) The author uses dialogue to add to the mystery of the story; the reader, like the boys, has no idea what Don Trine’s motivations are.
Hope my answer would be a great help for you. If you have more questions feel free to ask here at Brainly.
Hope my answer would be a great help for you. If you have more questions feel free to ask here at Brainly.