Read the passage below and answer the question. The pure contralto sings in the organ loft, The carpenter dresses his plank, the tongue of his foreplane whistles its wild ascending Ilsp. The married and unmarried children ride home to their Thanksgiving dinner, The pilot selzes the king-pin, he heaves down with a strong arm, (lines 255 - 258) What does Whitman describe in the passage from "Song of Myself? the diversity of the American people the unity between people and nature o the industrialization of America o the growth of American cities