With there are barriers to entry that keep competitors out of the market. a.) perfect competition b.) a monopoly c.) an oligopoly

The correct answer is B.

A monopoly is a market structure where a single firm serves the whole demand of a specific good or service. It does not face competitors because there are no products that can act as close substitutes, therefore, such firm has absolute market power to decide the price charged for its products. So, the monopoly is able to charge a higher price than in a perfect competition scenario and will earn much larger profits.

Morover, in order to protect its privileged position, the monopolist sets trade barriers that prevent new competitors from entering the industry. For example, monopolies are usually large firms that enjoy economies of scale therefore, if they want to, they can lower the prices of their products up to a point that is impossible for newly-born enterprises. Such cheap prices would attract the whole demand and the new firm would be forced to close down and abandon the sector.

music always has an important role in culture and societies, infact for example rock’n roll music has conditioned different areas of pop culture above all in the 60s. in the modern american society its role is different.

unfortunately many think about how some unfortunate events happened to the columbine high school shootings can be related to rock music just because the teenagers involved listened to this kind of music.

i think that we can valorize the change to take refuge in this genre of music to keep on in everyday life, teenagers are comfortable when they can listen to a song about a specific problem. realizing that someone else is living your personal drama too can them to feel less lonely nowadays.

e imma say squidward tentacles