Mrs. Sappleton enters the room and rattles on about her husband and brothers returning home from their hunt. Framton responds by saying: "The doctors agree in ordering me complete rest, an absence of mental excitement, and avoidance of anything in the nature of violent physical exercise," announced Framton, who laboured under the tolerably widespread delusion that total strangers and chance acquaintances are hungry for the least detail of one's ailments and infirmities, their cause and cure. "On the matter of diet they are not so much in agreement," he continued. Which of the following explains why Framton changes the subject? A. He's horrified to hear about the men and how they have gone hunting. B. He's unnerved to hear her talk about the men as though they are still alive. C. He is more preoccupied with his health than her husband and brothers. D. He's upset that she is distracted and isn't focusing her attention on him.