Question

the lack of competition within a monopoly means that
○ offered goods and services are lackluster.
○ the products market is small.
○ consumers must look elsewhere to find options.
○ monopolists set their own price.

Explanation:

In a monopoly, there is a single seller. Due to no competition, the monopolist has the power to set the price. Goods/services may not be lackluster (could be innovative), the market size isn't necessarily small (could be large like a utility monopoly in a big area), and consumers can't look elsewhere as there's no competition. So the key characteristic is the monopolist sets the price.

Answer:

monopolists set their own price.