The correct answer is (c). A credit card is a type of payment card that allows the cardholder to borrow funds from a credit card issuer to pay for goods and services. The cardholder is obligated to repay the borrowed funds, plus interest, to the credit card issuer. A prepaid payment instrument, on the other hand, is a payment instrument that is loaded with a certain amount of money that can be used to make purchases. The funds on a prepaid payment instrument cannot be borrowed, and the cardholder is not obligated to repay the funds to the issuer.
(a) A Delhi Metro Rail Card is a prepaid payment instrument that can be used to make payments on the Delhi Metro. The card can be loaded with a certain amount of money, and the funds can be used to make purchases at any Delhi Metro station.
(b) An electronic wallet is a type of prepaid payment instrument that can be used to make online and in-store purchases. The wallet is loaded with a certain amount of money, and the funds can be used to make purchases at any merchant that accepts electronic payments.
(d) Airtel Money is a mobile money service that allows users to send and receive money, make payments, and purchase goods and services using their mobile phones. Airtel Money is a prepaid payment instrument, as users must load their accounts with a certain amount of money before they can use the service.