Answer: C. creating a buffer against Western influence.
The main purpose of the Japanese imperial expansion was the desire to create a buffer against Western influence. Japan felt that the West and their imperialist plans were likely to continue to spread. Instead of waiting for these countries to overtake them, Japan wanted to develop its capabilities and engage in imperialism themselves. In order to fulfill this goal, they greatly developed their military. They also engaged in intense modernization and industrialization.
They changed from following a policy of Isolationism to becoming a superpower on the world stage
It could cause major changes because, for example, Egypt was a very wet place, the Egyptians wouldn't build their buildings out of mud bricks because they would erode super fast. So change in the physical environment could change the way civilizations built their buildings, grow their food, or the way they travel.
B.Citizens vote for the candidate they want to be the head of government.