identify a score of pop music

query.
I have a piece of score that has vocals, piano Treble and Bass, Bass guitar. I need to identify why this is a piece of pop music, it has no audio. the bass guitar score has a walking bass, Piano has two minor chords, Am and Bm. 4/4 timing in G, The treble piano is chordal, The Bass clef is made up of quarter, dotted quarter, quavers and an ending of a half note. The vocals are all quavers. beat is 80bpm, has moderately loud and crescendo and diminuendo, and soft P, Chords appear to be G Am, C D Bm Am, D G

Some of the answers to choose are: Powerchords,
Backbeat groove, {is this drums as there is no drum]
scalic melody, [perhaps this is the vocal score]
walking bassline, [the quavers are broken notes gggg aaae cccc dddd bbbb aaaa dddd g*]
eighth notes on root notes, [they're all broken so how can they be on root notes?}
Triads in quarter notes. [these are piano treble.

I need to find 3 features in the score that are commonly found in this style.
I can't see there'd be a powerchord when a rhythm guitar is not used.
How would I know a backbeat groove - is this a drum as their is none.
vocal staff may have scalic melody as the quavers go up and down [mostly 2nds] on the scale.
gaba ga edba ab a bcdc b a bagg gg

The piano treble uses triad chords as quarter notes throughout.

Pop songs use