Answer:
It is an example of demographic segmentation.
Step-by-step explanation:
To start with, demographics is the study of a population (especially a human population) on the basis of factors that include race, age, gender, households, families, ethnicity,education, income e.t.c.
Thus, demographic segmentation is a market segmentation based on factors that include race, age, gender, households, families, ethnicity, education, income e.t.c.
This kind of segmentation helps an organization or business like Hallmark store (from the question) to accurately target its customers and effectively satisfy their needs.