Final answer:
Psychographic segmentation is a market-research strategy that divides consumers into types based on psychological factors such as attitudes and interests. The correct option is: (c) Psychographic segmentation.
Step-by-step explanation:
The market-research strategy that divides consumers into types and measures psychological factors is called psychographic segmentation. Psychographic segmentation involves dividing consumers based on their lifestyles, values, attitudes, and interests. This strategy helps businesses understand the psychological motivations behind consumer behavior and tailor their marketing efforts accordingly.