Answer:
A. Scale
Explanation:
A scale is just that: a sequence of notes that go up, like C D E F G A B C.
Why not B: Monophonic is a term to describe a style of music in which only one melody is used, like Gregorian chant.
Why not C: An interval is the distance between two notes.
Why not D: A major scale is too specific! This question doesn't ask anything that specifies a major scale (which by the way is made up of not just rising tones, but specific half and whole steps).
Why not E: This is a term for a really good musician, not a sequence of tones.
