1. There are several major segmentation variables that might be used by a marketer to address a consumer market. If the marketer were to use social class, psychographic lifestyle, and readiness stage to segment its market, identify possible segmentation subcategories under each of the three. For example, if we were to segment based on usage rate, subcategories would be light user, medium user, and heavy user. 2. If a marketer were to segment a business (not consumer) market on the basis of demographics, what three subcategory segmentation variables would probably be used to assist with this form of segmentation? What questions would be asked in each of the three categories to advance the segmentation effort?