The answer is C. The US and Japan had been bumping heads.
Answer: America essentially saw urbanization as a necessity and nature as an obstacle.
Explanation: The United States started to urbanize around 1910 and in order to urbanize functionally you would have to have plenty of land for plenty of buildings and nature really had a lot of territory back then and there wasn't very much space for the country's city's to grow so the government decided the best to make more room was to clear away forest and such. Urbanization not only made America what is today but also had and still has a major effect on the weather; urban areas tend to generate more rain.
