Answer:
Option (A) is correct.
Explanation:
In a monopoly market condition, there is only one firm in the market and the price of goods and services are set by this firm only. There are large number of barriers or restrictions on the entry of the firms. The firm in a monopoly market conditions is a price maker. The prices of goods and services are generally higher in this market condition. For example, natural gas company, Microsoft and windows, etc.