The correct answer is 4)Will you chuck me your bull whip here ashore? Them horses is getting kind of dozey
This sentence best develops the theme of the importance of overcoming ones fears and standing up for onself. The readers can see through this sentence in the end of the story that John is now a changed boy, braver, more mature which is shown through the idea that he is not afraid that his father will be angry if he asks him for his whip since he dropped his.