The correct answer is D. which critical point you want to make about the piece of literature
Simile. It's comparing using the word like.
A really good example of how an advertisement can appeal to emotions are the SPCA commercials. (the super sad dog commercials.) they appeal to emotions by showing pictures and or videos of injured, starving, or abandoned dogs. This makes more and more people want to donate to the cause.
The answer is B, because Langston Hughes is saying that a dream forgotten and left behind is like a raisin drying up in the sun.