Ottoman Empire.
Explanation:
The only Islamic empire that controlled territory in Europe in the early modern era was the Ottoman Empire. This empire started to develop and expand in the 15th century. The Ottomans managed to use the decline of the surrounding empires so they managed to conquer them with relative ease, thus creating a very large empire on excellent strategic location.
Part of the Ottoman Empire was located in Europe, or more specifically it controlled the Balkan Peninsula. The aspirations of the empire initially were to expand into Central Europe and possibly Western Europe, but the forces of these regions allied and didn't allowed the Ottomans to expand beyond the Balkans. The empire existed until the early 20th century, when it lost most of its territory and was reformed to create the modern day country of Turkey.
Absolute chronology<span>. Geochronology in which the time-order is based on </span>absolute<span> age, usually measured in years by radiometric dating, rather than on superposition and/or fossil content as in relative </span>chronology<span>.</span>
The technological progress in all civilizations before the scientific revolution was made by scientists who were influenced by Greek science.
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When was the Scientific Revolution begin?</h3>
Scientific Revolution was the era that began in the year 1500 and lasted till the year 1700.
Prior to the introduction of the Scientific Revolution, advancements in technology were made in accordance with Greek Science. The scientific method was firstly developed by Aristotle in the ancient era of the Greek period by his empirical and logical knowledge.
Therefore, the explanation provided in option A is the right answer.
Learn more about the Scientific Revolution in the related link:
brainly.com/question/14805940
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B. If a ruled doesn't have enough troops, he can hire mercenaries to fight for him.