Wheelhouse, an advertising agency, wants to reengage shoppers who viewed one of their client's product pages but did not purchase. Which solution is best to reengage these shoppers?

Display ads are the best solution for reengaging shoppers who viewed a product page but didn't purchase because they can be used for retargeting. This allows Wheelhouse to show relevant ads to these specific shoppers on and off Amazon, reminding them of the product and encouraging a purchase. Sponsored Products are keyword-targeted ads primarily for discovery and consideration, not reengagement of specific past visitors. Custom solutions and sponsorships are generally broader branding or awareness initiatives, not tailored for direct reengagement of individual shoppers based on their browsing behavior.