Probably their amazing sculptures.
The only two times that Japan was successfully invaded by a foreign power were both in battles in 1945, in the midst of the World War II. These battles were the Battle of Iwo Jima and, a few months later, the Battle of Okinawa. Both of these battles were won by the US military.
Answer:
C. The federal government should be stronger than individual state governments
The main one is the only answer right for this