TOEFL Listening: TPO-TOEFL听力TPO - KM30CTCB170741PYR$

Why does the professor clarify the concept of a "fairy"? A. To explain the origins of the term "fairy tale" B. To eliminate a possible definition of the term" fairy tale" C. To support a claim about the function of fairy tales D. To indicate that fairies are a major element in fairy tale