TOEFL Listening: TPO-TOEFL听力TPO - ME95F1NYY7NL7EQVR$

Why does the professor mention local celebrations in the countryside? A. To show how folk music influenced composers throughout Eastern Europe B. To give an example of when performances of Bart'k music took place C. To give an example of occasions when Bart'k had an opportunity to hear folk music D. To talk about why romantic music was popular in the countryside