Which change would be least acceptable if the subject was a mayoral candidate and planned to use the photo in an election campaign? a. changing the color of the subject’s clothes b. reducing shadows on the subject’s face to make it clearer c. removing any blemishes on the subject’s face d. adding extra hair to mask the subject’s receding hairline

The gregorian chant was a major cultural milestone in the middle ages. it was one of the first codified forms of music meant to be played as written, where previously it was difficult to mass-produce and disseminate any music. what's more, these chants were also some of the first examples of musical notation: the notes and bars of today's music sheets are a reflection of centuries of evolution beginning with these chants. it became official throughout the entirety of the catholic church, meaning that nearly all of europe followed this musical notation and styling.