In a Review of Popular Music, Researchers Found That the Common

In a review of popular music, researchers found that the common themes of love and betrayal accounted for the subject matter in roughly 80% of songs. Despite the common themes, many people still continue to spend money on new popular music.
Each of the following, if true, would contribute to an explanation of the apparent discrepancy above EXCEPT

A) Even if the subject is the same, there are so many emotions related to love and betrayal it is possible to sing of them in many different ways.
B) Many people like to listen to music expressing what they themselves find hard to express, which are often feelings of emotions such as love or loss.
C) While love songs are always popular, the biggest hits of the past few years have all been songs with a political message.
D) Although most songs are about love or betrayal, artists find new ways to engage the material, as many are now singing about love between people of the same gender or different races.
E) People find comfort in listening to songs about love or betrayal after suffering a break-up, even if they have heard the subject matter many times before.