A Monopoly

A monopoly:

A) exists when either the buyer OR the seller has the ability to influence the market price.
B) exists when there are so many buyers and sellers that each has only a small impact on the market price and output.
C) exists when a single consumer demands the entire market for a particular good or service.
D) can have many sellers but only one buyer.
E) exists when a single company supplies the entire market for a particular good or service.