D. 10th amendment. (We're learning about this too! xD)
Anyways if one of the orange countries is the USA then its the Allied Forces. If one of the orange countries is Germany then its the Central Powers. Triple Entente was way before WWI and the Axis Powers was WWII.
Answer:
The suburbs were developed because there were some people who did not want to live in the urban areas and cities, so they wanted a geographical location for living in home purposes. That way, they would still be near the city and can travel to the city when they need to, but they would be able to live how they actually want to.