Which of the following is closest to the economist's definition of perfect competition?

Question

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Perfect competition refers to a market structure where there are many small firms producing homogeneous goods, there is perfect information, and no barriers to entry or exit. The fishing industry comes closest to this definition as there are many small fishing firms, the product (fish) is homogeneous, buyers have perfect information about prices and availability, and there are few barriers to entry or exit. The airline, soft drink, and cellular telephone industries all have a significant presence of large firms, product differentiation, and barriers to entry or exit.

Which of the Following Is Closest to the Economist's Definition