Final answer:
Concentrated marketing is used by a national park selling souvenirs, mass marketing applies to a company selling plastic cups widely, and differentiated marketing is shown by a salon personalizing hair treatments.
Step-by-step explanation:
Matching the correct marketing strategies to the provided scenarios involves understanding the definitions and applications of different marketing approaches. In scenario A, a national park displaying souvenir merchandise is an example of concentrated marketing since the efforts are focused on site-specific visitors looking for memorabilia. Scenario B involves a company marketing disposable plastic drink cups at supermarkets, which is a representation of mass marketing; the product has a universal appeal and is not customized for particular market segments.
Lastly, scenario C, where a salon offers a variety of hair treatments tailored to customers' personal needs, best illustrates differentiated marketing. This salon recognizes the varied preferences among its client base and caters to these differences with specialized offerings.