Using the information in the table, develop the four-firm concentration ratio. Would you classify this industry as an oligopoly? Explain your answer. 
Definitions:
Conservatism
A political and social philosophy promoting traditional institutions and practices, emphasizing stability and continuity.
Gender Identity
The personal sense of one's own gender, which may or may not correspond to the sex assigned at birth, and is a deeply held sense of being male, female, both, neither, or anywhere along the gender spectrum.
Sexual Identity
How one thinks of oneself in terms of to whom one is romantically or sexually attracted.
Gender
The range of characteristics pertaining to, and differentiating between, masculinity and femininity, often based on social and cultural meanings.
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