Which of the following is the best example of imperialism? A. In 1776, the United States declares independence from Britain.
B. The territory of Utah becomes a US state in 1896.
C. Belgium and Luxembourg form an economic union in 1921.
D. In 1902, Britain wins the South African War and takes over the Transvaal.

D. In 1902, Britain wins the South African War and takes over the Transvaal.

Explanation:

Imperialism definition:

a policy of extending a country's power and influence through diplomacy or military force.

in 1803 the louisiana purchase took place, doubling the size of the country. by 1840 almost 7 million americans had migrated westward in hopes of securing land and being prosperous. the belief that settlers were destined to expand to the west is often referred to as manifest destiny.

explanation:

the answer is b just took the test