The answer is A. World War I. Japan grew during this time. Their economy flourished. They have started to expand their business and became an industrial nation. They were able to provide more materials for their factories.They pressured China by giving their 21 demands. They saw the war as an opportunity.
The answer is D. A set of diary entries written by generals who planned strategies during world war II. This is a primary source which was written during that time period and so would be the best support for the authors' argument..
