Answer/Explanation
Charlemagne
The Carolingian Renaissance occurred mostly during the reigns of Carolingian rulers Charlemagne and Louis the Pious. It was supported by the scholars of the Carolingian court, notably Alcuin of York
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The answer is A focal point. I is <span>the point at which rays or waves meet after reflection or refraction, or the point from which diverging rays or waves appear to proceed.</span>
