Oligopoly is a market structure in which a small number of firms has the large majority of market share. An oligopoly is similar to a monopoly, except that rather than one firm, two or more firms dominate the market.
It is dictionary definition.
I believe the answer is B Blockade runners
The term Agency refers to the actions that individuals take, both alone and in groups, in forming and transforming cultural identities.
<h3>What is agency?</h3>
An agency serves as the organization which could be a government or private agency that help to provides a service, like an aid organization as well as government bureau.
It should be noted that agency like the employment agency can be of help to manage and seek for job on your behalf, because they are institution that specializes in something, hence The term Agency refers to the actions that individuals take, both alone and in groups, in forming and transforming cultural identities.
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Person on top of me is right