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<span>They did originally enslave American Indians, but three things put a stop to it. First, the Indians were all dying of epidemic diseases, which Africans had already been exposed to. Second, the Indians, being native, had a better knowledge of the land and its peoples, which made escape/revolt attempts more likely to be successful. Third, in response to debates about Spain and Portugal's treatment of indigenous people, the pope issued a bull in 1531 that banned the enslavement of American Indians.</span>
I would say D because they ball did accelerate but the force on the ball didn't increase because the force is from Juan's hand who is stopping the ball. So, that makes the sentence kind of incomplete and false. The greater acceleration means greater force is true because it will take more strength for the ball to stop. And the rest are saying about the same thing. I hope this helps!