The answer is C because water can only specifically preserve water and food storage
The frets could be somewhere alongside the neck. Some diagrams are in favor of vertically oriented, rather than horizontally. But they function the same way, just turn it 90 degrees clockwise. So, the answer is fretboard diagrams can be oriented vertically or horizontally.
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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