Four modernizaron is the correct answer
The need to completely recover from the damages left during the post World War ll made Japan eager to overcome. They educated and trained themselves to rebuild their economy. They also opened their country to free trade. Everyone had became a part of social reconstruction in all different aspects including soldiers. They sought out ways to build new industries such as micro technology to cater the needs of the world market.
From what I know ethnocentrism means someone who thinks their culture is higher than another therefore I would go with A.
Answer: He was younger than 14 and had to wait on officers and was assigned to have a gun to carry a cartridge.