Folk music
When we refer to "folk music," we often are referring to well-known, old, traditional music styles in a culture for which we may not even know who composed the songs. Folk music tends to be passed on by oral transmission more than by organized publication. In a way it is the common music of a people or culture.
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Marginal analysis can be used to determine at what price profit maximization occurs
Explanation:
D is the answer to your question. i think.
Queen of England and she is important because she’s basically the ruler of England
Sorry i dont know the answer give me choices next time please