Differentiated marketing is defined as

Select one:

a$.$ The process of selecting one or more market segments for focused marketing efforts

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b$.$ The marketer uses only one strategy or marketing mix for the entire market

c$.$ A targeted marketing strategy where the company targets more than one market segment and develops a unique marketing mix to target each segment separately

d$.$ A targeted marketing strategy where a company chooses only one segment to target and customizes a marketing mix for that target market