B, are should be our instead!
Answer:
Béla Viktor János Bartók was a Hungarian composer, pianist, and ethnomusicologist. He is considered one of the most important composers of the 20th century
Explanation: Has the same detail as in the question. Also, pay attention to your classes please!
Umm... add more? Stretch things out, talk. This is an opportunity to add more to make your iMovie perfect.