The strategy of developing individual offerings to appeal to different market segments while remaining closely related to the existing product line is called marketing

Line extension

Explanation:

Line extension is the term which occurred when the company or business introduce the extra or the additional items in the category of the same product under the same brand name.

Therefore, it is (line extension) the strategy used by business for developing the individual offerings for appealing to the different segments of the market while the remaining closely related to the product line which is existing.

the third answer is correct.

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