To display the appropriate certification logo on the product details page depending on the customer's location, the best approach is to use C. Add a Site-specific custom attribute to the Product system object type. This solution allows for the storage of different values for the certification logos based on the site context (U.S. vs.
Europe), directly associating each product with its relevant certificate per market. By utilizing site-specific custom attributes, products can dynamically display different information depending on which site the customer is browsing, ensuring the correct certification is shown.