C. They where normally found in Gregorian Chant Music where the pope, priest, etc., would sing a line and the congregation would repeat it. That's what a plainchant or plainsong is. A cadence could also have neumes but that form of music did not come until later.
The answer is A, to play music on all staves linked by the line at the same timw
Answer:
Descriptive Lead
Explanation:
The reporter starts the article by describing the scenery and painting an image for the reader instead of diving right into the news hook/meat of the story.