The split into Sunni and Shia of the religion of Islam can traced back to the dispute over the question of Muhammad's successor. Thus, the answer is letter C. It was believed that the dispute emerged in 632 just after the death of the Prophet Muhammad.
I believe the answer would be Phalanx.
I wanna say it the second option.. if im wrong lmk thanks
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The main features of the Alliance System which existed in Europe in 1914 were born from fear that came about from militarization in the area. There were too many connections.