Which of the following was not a direct cause of the outbreak of World War I? A. Competing policies of imperialism between European nations.

B. Substantial militaristic buildup across Europe.

C. The assassination of Arch Franz Ferdinand by Serbian Nationalist.

D. German attempts to incite a war between the United States and Mexico.

D

Explanation:

german attempts to incite a war between the u s and mexico

if i knew what was the answer i wouldve put it

the answer is b: the religion they practice.

here's why:

there were many different native american tribes and those with similar characteristics formed a main tribe or nation. each had its own language, religion and customs.