When processing a credit card, which of the following information must be requested?

The correct choice involves requesting the expiration date, security code, and cardholder name because these pieces of information are critical for verifying that the person making the transaction is authorized to use the credit card.

The expiration date ensures that the card is valid and not expired, while the security code, often referred to as the CVV (Card Verification Value), provides a layer of security by confirming that the person has physical possession of the card during the transaction. The cardholder's name allows for verification against the card being presented, ensuring that the name matches with what is registered with the credit card issuer. Together, these elements are essential for safeguarding against fraud and ensuring transaction security.

In contrast, other options include information that is either irrelevant or not typically required when processing a credit card transaction. Bank account numbers and routing numbers pertain to debit transactions, while Social Security numbers and birth dates are not necessary and could pose privacy risks if gathered unnecessarily. Full addresses and phone numbers may sometimes be requested for billing verification or shipping purposes but are not standard requirements for processing a credit card.