In what era did the development of polyphony begin to emerge

Polyphony is defined as the style of simultaneously combining a number of parts, each forming an individual melody and harmonizing with each other.

The development of polyphony began to emerge in the Romanesque era. The earliest type of polyphony was organum or the earliest harmonization of the chant.

i think its either b or c

explanation:

the supreme court can hear any case it wishes as long as four justices agree to hear it.

hope this , give me brainliest answer =j