I believe it is A. NATO <span />
Slavery is not an option, because all races are equal. It doesn't matter if you are blind...disabled...black, nothing matters because we are all human.<span />
They tried to limit expansion because they thought the Indians would kill them all. They threatened all the colonists and forced them to stay in the colonies.
All of the following are theories that historians have come up with to explain what caused the Salem witch hysteria except "<span> B. It was caused by a desire to distract citizens from conflicts with Native Americans on the frontier", since these issues were hard to mask.</span>
Iit protects against any branch of the government trying to abuse its power. This way all powers are shared and equal. This goes even for the president, he alone cannot mandate orders. It takes approval of branches (judicial, legislative, executive) to get to a deal. :)
Happy New Year!