Steamboat Willie was created by Walt Disney
Mongol were the ones who made the Yuan Dynasty. :D
Probably 1, however I can see why that would be a tiny bit confusing.
Building walls protects from incoming invaders(at least back in the day), creating armies, makes a force to go and fight to protect the people, and what was the other one? Oh yea, moving to a safer place.
Doing that would mean making invasions less likely, and making your people feel and be safer.
Hope this helps.
Answer:
they were major centers for business, holding loads of money. there were thousands of people, and they were in one of the largest cities. they wanted to hit us where it hurt, and they did.
The answer is letter C hopefully this helpssss