The correct answer is "a Man". Kipling ends his poem with the line "And—which is more—you'll be a Man, my son!" This indicates that Kipling is addressing his poem to youths who are not yet adults (or even immature adults). The speaker is a father-figure that intends to counsel his son about becoming an adult. The first stanza is about knowing oneself. The second is about knowing that we not always get what we want. The thirs is about being brave. The third is about knowing one's place in the world.
Greg shows himself to be a dynamic character because he changes over the course of the story and learns a valuable lesson. He learns not to make assumptions about people based on the way they look. Lemon Brown shows Greg that he is a caring and brave person who lost his son in a war. This changes how Greg thinks about his own father.
