law of gravity. everything that goes up must come down because there is a force called gravity that is pushing down on every object on the earth. hope this helps bebe:)
I would also go with D.) Mutually assured destruction.
This whole idea mainly started during the Cold War. The United States and Soviet Union didn't want to use their nuclear weapons because they feared that if they did, the other side would retaliate. Ultimately, both sides would lose everything.
Revivalism and created new churches
A because the ratio from black to white near close to equal