Which of the following describes how 19th-century imperialism was different from older forms of imperialism?
A. Older forms of imperialism were motivated by a desire to spread a specific culture.
B. Older forms of imperialism were driven by a desire to acquire sources of natural resources.
C. Older forms of imperialism were intended to control a country's economy.
D. Older forms of imperialism were more concerned with establishing colonies in foreign territories.