Final answer:
The 'Affluent materialists' lifestyle group is the target segment for BMW, as they have the means to flaunt their wealth and seek luxury in their purchases, aligning with BMW's brand.
Step-by-step explanation:
The lifestyle group identified by D'Arcy Massius Benton & Bowles (DMBB) that would be a target segment for BMW is A) Affluent materialists. This group is characterized by their ability to flaunt their wealth through purchases such as sports cars and luxury items, which aligns well with BMW's high-quality and premium brand image. Members of the upper class often seek luxury, safety, and comfort in the products they buy, making them ideal customers for BMW's upscale vehicles.