Improv is when you do something that is not planned or written in the music. For instance a singer can provide improv by doing a run or adding in an extra note or something of that nature. improv is mostly a drama term that is used for an unscripted scene between two or more actors, typically they are given a topic and thrown into a scene with no prep time.
Original because it means it’s unique
Answer:
art that uses more than one medium
Logically, it would be B
Polka dot patterns are just a simple pattern with rhythm and symmetry
