One way in which <span>European imperialism contributed to the start of ww1 was that European nations were in heavy competition over obtaining natural resources and territory in places like Africa and South America--leading to an "us vs. them" nationalistic mentality. </span>
Answer:
In recent years, Sunni–Shia relations have been increasingly marked by conflict, particularly the Iran–Saudi Arabia proxy conflict. Sectarian violence persists to this day from Pakistan to Yemen and is a major element of friction throughout the Middle East and South Asia.
Explanation:
C, is the most abundable answer
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