Which example best illustrates a card issuer?

The example that illustrates a card issuer best is one in which a financial institution provides credit cards directly to consumers, which is exactly what Chase does. Card issuers are responsible for underwriting and managing credit accounts, assessing creditworthiness, and providing customers with credit cards that they can use for purchases. In this case, Chase represents a bank that issues credit cards to consumers, thus occupying the role of the card issuer.

Wells Fargo, while involved in processing payments, primarily serves as a financial institution managing transactions rather than directly issuing credit. Amazon's role as a merchant accepting payments doesn't fit the card issuer definition because it does not issue credit cards but rather receives payments through them. Global Payments, similarly, is a payment processor, facilitating transactions but not issuing credit directly to users. Therefore, Chase exemplifies the card issuer role as it directly interacts with consumers by providing them with credit cards.