Final answer:
The market segmentation using demographic variables is exemplified by Gillette offering a triple blade razor specifically designed for women.
Step-by-step explanation:
The correct answer is a) demographic variables.
Market segmentation is the process of dividing a broad target market into smaller, more specific segments based on certain characteristics or variables. In this case, Gillette segmented the market by targeting women who were looking for a razor designed specifically for them. The decision to offer a triple blade razor for women shows that the segmentation was based on demographic variables, such as gender.
Different variables can be used for market segmentation, including demographic, psychographic, geographic, family life cycle, and product use. Demographic variables include factors such as age, gender, income, education, and occupation, which can help companies better understand and cater to specific customer segments.