Answer:
An aesthetic is A. a set of artistic principles.
Step-by-step explanation:
Aesthetics study is a set of artistic principles which appreciates the beauty of art. It is a branch of philosophy that studies about the imagination, thoughts, and creative spirit of the artists. It also helps in studying the thoughts and views of the people while hearing music or reading poetry.
The Aesthetics study also allows one to study the people's criticism of some work over the others. This study also emphasizes the people's mood, attitude, and belief towards the art.