Answer:
The marketing mix element is Place
Step-by-step explanation:
The place, as element of the marketing mix, consists of the location where the product or service is supplied by the firm, and bought by the customer.
In this case, the firm, Zipcar, has a clear goal for the element place of the marketing mix: to have a zipcar location available within 10-15 minutes of its members. This strategy is clearly important for the firm because it would require a significant number of locations, or "places", meaning that the place is probably one of the most crucial aspects of the firm's marketing strategy.