Progressive profiling is used to:

Progressive profiling is a marketing strategy used to gather more information about prospects over time rather than asking for all details upfront. This approach enhances the user experience by not overwhelming new visitors with lengthy forms. Instead, as a visitor engages more with the content or returns to the site, marketers can introduce additional questions to collect further data, creating a more comprehensive profile of the individual without sacrificing the ease of initial interactions.

In the context of the provided choices, focusing on providing additional questions for returning visitors aligns with the essence of progressive profiling. This technique allows marketers to incrementally build a rich database of insights about user preferences and behaviors, ultimately enriching the marketing strategies and personalizing interactions based on the evolving understanding of the customer.