It was A. Hernando Cortes was the Spanish conquistador who overthrew the Aztecs
1. It would be pretty bad in my opinion. We wouldn't be able to purchase things whenever we wanted to, and we wouldn't be able to set up a proper trade table. It would flop.
3. I don't think that would work very well. That could be abused easily, and the fewer opinions that are given can make a decision harder.
The answer is A) The speed of the rock changes, but not its direction. The rock will continue downward, but at a slower speed.