It should be A, since before the Spanish came, there were no horses in the America's. With horses, the Indians were able to hunt more efficiently and had a better way of transportation.
By the way, can you answer one of my questions? Thanks!
Answer:
First though (not part of the anwser) you could put something like I think that Thoma Clarkson's motive to publishing this drawing was to show people in the future what the ship would have looked liked.
Answer:
USPS
United States Postal Servie
Explanation: