A. Africans had a steady supply of slaves Europeans could employ.
Allowing black property holders to vote is your answer
In 1753, Virginia's governor sent 21 years old maj. George Washington to a mission, deliver a message to the french, demanding that they leave the Ohio valley, not only they wanted to stop the expansion of the french, but also control a fertile region, with great rivers and transit corridors, Washington made his way to the valley with a family friend who spoke French, they arrived on December 11th 1753 and were received by the captain Jacques Legardeur de Saint-Pierre, who after reading the letter replied that the claim was "incontestable". Washington went back to Virginia and made it there after two and half winter months.
With carts, they pulled the carts