Free 15 points and a thanks and 5 stars

In an article about americans working in middle eastern countries, cicy, a white journalist, is described as knowing that she should cover her hair when she leaves her house. according to this article, cicy:

Choose the term below that you would not find as a musical part of the medieval mass.

Describe what the animation frame above is showing. what cels might have been created for this frame? list the individual cels