How do you give brainlist answers?

Anarrative piece of are ? a. tells a story or series of event b. serves as a remembrance of an event person c. display the likeness of a person, in order to document their existence d. relates the lives of important individuals

The dynamics of a musical piece refer to the a. key signature b. composer’s history c. volume changes d. instrumentation

What is a principle of design that repeats elements to create good visual flow?