The answer is C. Right before the Civil War, Texas' population had tripled meaning they had more population.
What are you expecting us to answer to This?
The answer would be inventions, so no one else can steal ideas.
Keeping Communism from spreading beyond the countries already under it's influence
A. the rise and fall of successive families of rulers in China
The dynastic cycle is the theory that each new dynasty goes through a cultural cycle under the mandate of heaven.