You're a marketing manager for your company's website, JesseJames.com, an online seller of books about American history. Google Analytics has shown that the exit rate on the checkout page is high. In a meeting with the developer team, you explained that this means that the user experience is good up to the checkout page. Making the purchase then becomes too difficult for most users. You've recommended that they implement a one-click-to-buy option that uses information stored in the user's account. Which type of user personalisation is this known as?

This is an example of "using given information" because the one-click-to-buy option relies on data (shipping address, payment details) that the user has previously provided and stored in their account. This personalization streamlines the checkout process based on explicit user input. "Delivering a relevant web page" refers to dynamic content changes based on user behavior or preferences, not pre-stored data for a transaction. "Static profile matching" involves segmenting users into predefined groups, which is broader than leveraging specific, previously entered user data for a direct action. "Using known user signals" typically refers to implicit data like browsing history or device type, not explicit account information used for a purchase.