Which option allows customers to still see their cart items if they leave the site and return later?

The option that allows customers to still see their cart items after leaving the site and returning later is the persistent shopping cart. This feature is particularly beneficial for enhancing the user experience, as it allows shoppers to easily continue their browsing and purchasing process without losing the products they had previously added to their cart.

The persistent shopping cart works by saving the items in a user’s cart across browser sessions. This means that even if a customer closes their browser or turns off their device, when they return, their cart will still reflect the items they previously selected. This functionality encourages users to come back and complete their purchases, potentially leading to increased conversion rates for the store.

On the other hand, saved carts typically allow customers to save their cart at a specific point but do not automatically retain cart contents across sessions unless further interacted with. Backup cart functionality and temporary session storage are not standard terms or features used in Magento relevant to retaining cart items for users returning to the site later.