Which detail from "The Glass of Milk" supports the inference that it is not pride alone that keeps the boy from begging for food?   A. When the boy sees sailors giving out food, he shrinks from them "from timidity and shame."   B. When offered a handout, the boy "refused it heroically."   C. The boy sees the city as a "den of slavery."   D. The boy feels disgust at the "gaudy tramp" who takes the sailor's food.