Kidd Refers to Social Media as a Kind of Art

Kidd refers to social media as a kind of art. What definition of art does he use to make this claim?

A) Disciplined, creative work that may be performed by both artistic professionals and outsiders or amateurs.
B) Sacred objects or practices, as distinguished from mundane and profane ones, that must be honored in grand temples.
C) A set of genres or media formats that are socially recognized as a distinct and special form of communication.
D) Any form of expression that is recognized as being of distinctly high quality.