It is D, the ottoman empire. It' not A because the byzantine's were part of the ottoman empire. The Mongols were eastern asia so that wouldn't be it. And the roman empire had already fell by the time the Ottoman empire had rose. So you have your answer! Hope I helped. :)
<span>The material assets of the North during the Civil War became more effective during the long run. Meaning, the assets were not immediately beneficial, but rather, paid off after time had passed. The assets included the beginning of new markets of selling products and for production of products and labor. There were different and new types of raw materials as well as a new frame of mind that added to the interest in democracy.</span>
War started mainly because: Militarism, Alliances, Imperialism and Nationalism. Big armies become threats to other countries then other countries force alliances
The overall cause of World War was the assassination of Archduke Franz Ferdinand.
Islam is the most common in Central Asia. Hope this helps!