How is this one?

Products may be accessed using SEO friendly URLs like /my-product instead of /catalog/product/view/id/ {ID}

How is this one?
A . An event observer adds RewriteRules to .htaccess on product save
B . MagentoCatalogControllerProductView::loadByUrlKey loads product pages using the url_key attribute value
C . Using a URL Rewrite stored in the database connecting the request path with the target path
D . A plugin on MagentoUrlRewriteControllerRouter::match loads products by the url_key attribute

Answer: C