Answer: Differentiation focus
Step-by-step explanation:
Marketing focus is not an actual marketing term. Cost leadership strategy's main focus is on the reduction of expenses which in turn, lowers prices of product while targeting a wide array of market segments.
In this question, Volkswagen is not reducing costs, or targeting large market segments. Differentiation strategyā€¯ require products to possess significant points of difference in brand image, product offerings, higher quality, advanced technology, and superior service to command a higher price while also targeting a wide array of market segments. For this question, these factors are not explaineded as targeting a broad market segments.
Differentiation focus strategy requires the products to have significant points of difference that is vital to target one or only a few market segments. For this question, Volkswagen uses a specific and unique factor to appeal to a specific group of people. So differentiation focus is the answer.