select the correct answer.\nwhat led to the birth of polyphonic music?\na. an increase in the size of church…

select the correct answer.\nwhat led to the birth of polyphonic music?\na. an increase in the size of church choirs\nb. a need for dance music in the middle ages\nc. the dominance of the church over the minds of people\nd. an effort to revolutionize the plainchant
Answer
Brief Explanations:
Polyphonic music developed as an attempt to expand and revolutionize the monophonic plainchant. Church choirs' size increase wasn't the main cause. Dance - music need in the Middle Ages is not related to polyphonic music's birth. The church's dominance over people's minds didn't directly lead to polyphonic music.
Answer:
D. an effort to revolutionize the plainchant