Answer:
These are the answer choices in the question:
a.Monopolies are formed when they buy out their competition in a market.
b.Monopolies thrive when they have competition.
c.Competition in the market ensures that monopolies charge fair prices.
d. Competition in the market helps monopolies to develop.
This is the correct answer choice:
a.Monopolies are formed when they buy out their competition in a market.
Step-by-step explanation:
A monopoly is a market structure in which there is one single supplier for a product that has no close substitutes.
Monopolies have market power, they can charge prices that are higher than in competition.
Monopolies can form in many ways, by government mandante, by regulation, or when a firm buys out all of its competitors, like the correct answer choice is referring to.