you need to take into account how many major and minor thirds there are. If in the tab there are 3 notes together it will be a chord if its seperated notes then it is the pentatonic scale and if it has more then three notes it is the dominant seventh
Pop Art uses iconic people or cultural symbols which can be identified as exactly what they are. Abstract Expressionism is not identifiable as a specific things or object, because it is supposed to communicate feelings. Pop Art usually sends a specific message, whereas Abstract Expressionism is art that is up to interpretation.
Primary colors: yellow, red, and blue
Secondary colors: orange, purple, and green
The answer is C, I believe.