the most common method of market segmentation is: economic segmentation psychographic segmentation product…

Brief Explanations:

Demographic segmentation involves dividing the market based on easily measurable and observable characteristics like age, gender, income, etc. It is widely used as these data are readily available (from census, surveys etc.). Economic segmentation is too narrow (focuses only on economic aspects like income brackets in a limited sense compared to full - scale demographic). Psychographic (lifestyle, values) and product - based (usage, benefits sought) are more complex and require in - depth research. Demographic is simpler and more commonly applied initially for basic market division.

Answer:

demographic segmentation