According to the criterion of , a selected segment must be large enough to warrant developing and maintaining a special marketing mix. Serving the specific needs of this segment must be commercially viable, even if the number of potential customers is small.

Substantiality.

Explanation:

Market segmentation is one of the important marketing strategies to divide the entire market into small segments in order to implement a better technique to satisfy the consumer need with specific products and schemes. There are four basic criteria for useful segmentation of the market:

Substantiality: This criterion of segmentation express the notion that the target market must be large enough to be profitable as a small segment can not justify the investment.

Similarly in the given case, it talks about the substantiality criteria of segmentation as it says a selected segment must be large enough to warrant developing and maintaining a special marketing mix.

answer; ///i believe the correct   answer is (e) transformational;