Witch one is E major?

Which of the following is not typical of medieval music? monophonic or polyphonic often not written down religious in nature mainly instrumental

The caves at lascaux were closed in 1963 because a. vandals were destroying the paintings b. the collective breath of the many visitors caused the paintings to corrode c. the weather was destroying the paintings d. the government of france wanted scholars to be able to study the work without distraction

What does it mean to have a bias (for example your bias of bts)?