Which of the following BEST explains how Japan responded to the challenge presented by the global economic downturn in the 1930s?
A. Japan decided the expansion into mainland Asia was the best option to increase financial and political power.
B. Facing a stagnating economy, Japan tried to forge new trade ties with the United States and Canada.
C. Japan entered into an agreement with China to invade, occupy, and annex Korea.
D. Japan focused on new technological research to revitalize its domestic economy.