Answer:
The correct answer is Concentrated marketing.
Explanation:
Concentrated Marketing is a Segmentation strategy through which a company focuses solely on a segment of the population or a small number of them, for which it launches a specific marketing program. Also called monosegment marketing.
For example; You want to offer a software programming service, first of all you begin by verifying the sector to which you should offer this service, in which you must study your needs and take the opportunity of an improvement for your services, after verifying that there is a need for your service, it must be implemented in the population sector to which you have decided to offer your service.