AT&T, MCI, Verizon, and Sprint Control Approximately 80 Percent of the $16

question 109

Multiple Choice

AT&T, MCI, Verizon, and Sprint control approximately 80 percent of the $16 billion international long-distance telephone service market.These companies operate in a(n)

• A)monopoly.
• B)cross-market.
• C)pure competition.
• D)monopolistic competitive position.
• E)oligopoly.

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Definitions:

Trait Variation

The difference in characteristics, often genetic, that occurs within individuals in a population.

Overregularizing

A phenomenon in language acquisition where children apply regular grammatical rules too widely, resulting in incorrect linguistic forms.

Cognitive Flexibility

The cognitive skill of moving between two distinct ideas, or the capacity to consider several ideas at the same time.

Selective Attention

The focusing of conscious awareness on a particular stimulus while ignoring other perceivable stimuli.