Scarcity of resources. The European countries and Japan didn't have all the resources they needed in order to keep up industrialization and a few other reasons. They resorted to taking over other lands in order the "cheaply" obtain the resources.
The white abolitionist movement in the North was led by social reformers, especially William Lloyd Garrison, founder of the American Anti-Slavery Society, and writers such as John Greenleaf Whittier and Harriet Beecher Stowe.
Answer:
i think it is D) moving people easier and cheape
Common Sense is the answer