TOEFL Listening: TPO-TOEFL听力TPO - 8PAFZ5223TZG3RU1R$

What two points do the speakers make about tap dancing? A. Tap dancing is becoming a popular form of entertainment on campus. B. Tap dancing classes have always been offered at the university. C. Tap dancing requires a certain type of flooring. D. Tap dancing creates sounds that are important to the performance.