Which of the following was a direct cause of a job specialization in early human civilization

Which would be good historical evidence when studying manifest destiny?

What does the quote describe? “the closeness of the place, and the heat of the climate, added to the number in the ship, which was so crowded that each had scarcely room to turn himself, almost suffocated us….the shrieks of the women, and the groans of the dying, rendered the whole a scene of horror almost inconceivable.”

What is the supreme law of the land? the declaration of independence the federalist papers the articles of confederation the constitution