Answer :
Answer:
Monopolistic
Explanation:
- A market where only one company is responsible for offering products and services to the consumers in the market then such a market is known as the monopolistic market.
- In a monopolistic market, the control lies in the hands of a single company that performs actions such as setting the costs and fixing the supply of the product or service.
- In the given question, the advertising campaign has been started by one firm and then followed by other manufacturers and thus, it suggests that it is an example of a monopolistic market.