Answer:
Medieval music includes solely vocal music, such as Gregorian chant and choral music (music for a group of singers), solely instrumental music, and music that uses both voices and instruments (typically with the instruments accompanying the voices). Gregorian chant was sung by monks during Catholic Mass.
Explanation: its in the answer
The correct answer is A!
I know it was already said but it is the correct choice :)
It would be D alphabets and numbers