Answer:
The correct option is A, market segmentation
Step-by-step explanation:
Market segmentation is the process of dividing customer base into distinct groups based on age,income,level of education,personality,perception and so on.
The purpose of segmenting the markets is for the organization to satisfy the needs of these different groups based on their unique characteristics and to able to sell to them goods that best match their status.
The scenario here is that Gap Inc,has successfully been able to discover the right set of people that its casuals best match.