Question

natural monopolies occur when one producer
can meet the markets entire demand.
controls the method of production.
is the only one authorized to produce a given product.
creates unique products.

Explanation:

A natural monopoly exists when a single - firm can supply the entire market demand at a lower cost than multiple firms due to economies of scale. This means one producer can meet the market's entire demand. Control of production method may not always lead to natural monopoly, authorization is more related to legal monopoly, and creating unique products is more about product differentiation in monopolistic competition.

Answer:

A. can meet the market's entire demand