AT&T, Verizon, Sprint, and T-Mobile Serve More Than 95 Percent

question 137

Multiple Choice

AT&T, Verizon, Sprint, and T-Mobile serve more than 95 percent of the subscribers in the U.S. wireless mobile phone market. Which form of competition characterizes this market?

• A) pure competition
• B) limited competition
• C) a monopoly
• D) an oligopoly
• E) monopolistic competition

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Definitions:

Mutualism

Symbiotic relationship in which both species benefit in terms of growth and reproduction.

Biosphere

Zone of air, land, and water at the surface of the Earth, in which living organisms are found.

Lithosphere

The rigid outer layer of the Earth, consisting of the crust and the upper mantle, involved in plate tectonics and continental drift.

Biome

A large community of plants and animals that occupies a distinct region defined by its climate, flora, and fauna.