Which type of card can be swiped on the magnetic stripe card reader?

The correct answer identifies gift and exchange cards as the type of card that can be swiped on a magnetic stripe card reader. Gift and exchange cards typically have a magnetic stripe that contains the necessary information to be processed by point-of-sale systems, making them suitable for this type of transaction.

While all options may seem plausible based on how they function in a retail environment, it’s important to understand that not all cards are designed to be used in the same way. Credit cards and regular debit cards generally also have magnetic stripes and can be processed, but the question specifically highlights gift and exchange cards as the focus. Customer loyalty cards may also feature a magnetic stripe, but their ability to be swiped can depend on specific store policies or the card's format.

Thus, in this context, emphasizing gift and exchange cards as a clear example of cards that can be swiped helps clarify the main function of magnetic stripe card readers in processing transactions for these particular card types.