Which of the following embedded quotes has the STRONGEST transition/introduction?

For example, it's "a dream of getting ahead painted in strokes of gold wherever we look” (93).

Zinsser explains it's a dream of getting ahead painted in strokes of gold wherever we look” (93).

I'm right because a dream of getting ahead painted in strokes of gold wherever we look” (Zinsser 93).

The American dream is believed to be "a dream of getting ahead painted in strokes of gold wherever we look" (Zinsser 93).