Respuesta :
D IS THE ANSWER HOPE THIS HELPS AND PLEASE MARK ME AS BRAINIEST AND ADD ME AS A FRIEND!!!
The correct answer is B. "He was useful because he had been instructed; and what he knew was this—that should the water in that transparent thing disappear, the evil spirit inside the boiler would get angry through the greatness of his thirst, and take a terrible vengeance."
D shows common understanding; not difference and therefore is not the right answer.