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Answer:
Your answer is B). Cecil Sharp only invented/discovered English Folk music.
Both folk country and bluegrass are traditional country music. Bluegrass, country, and folk music have many things in common. All three were discovered by Cecil Sharp.
What is the relationship between folk/bluegrass and country music?
Bluegrass music developed from traditional folk songs brought over by immigrants from the British Isles and evolved in isolation in the Appalachian mountains.
Bluegrass is considered as a sub-genre of country music along with different features that is helpful to categorized it from main stream country.
Therefore, correct option is B.
Learn more about folk music, refer to the link:
https://brainly.com/question/4373815