Is most similar to the Preamble to the U.S. Constitution. The answer is C.
Answer: The reason America became involved in WWI was because Germany started sinking American merchant ships around the British isles
Explanation: Originally, America wanted nothing to to with the war because they weren't concerned about about events and alliances in Europe, and thus stayed out of the war. But eventually German forced our hand and we joined.
The primary reason for European colonization of Africa was capitalism. European nations saw an opportunity for new trade routes and potential wealth in some of Africa's natural resources. The geographical limitations of Europe were also a factor.