Magazines like martha stewart living, better homes & gardens, and other magazines targeted to people who are interested in improving their personal spaces rely on segmentation.

The correct word to fill the blank will be psychographic and the complete sentence will be psychographic segmentation.

Explanation:

The psychographic segmentation is the division of the population based on personality, motives, and lifestyle. In this particular case, magazines like Martha Stewart Living and better homes & gardens are targeted to people with those particular selections.

answer; biological;