Which one of the following best describes the term "Merchant Discount Rate" sometimes seen in news ?
Explanation
The Merchant Discount Rate (MDR) is the fee a merchant pays to a bank for the service of processing payments made by customers via debit or credit cards. Option (D) is the most tempting distractor, but it is incorrect because while the government may subsidize MDR to encourage digital transactions, the term itself refers to the underlying charge rather than the incentive. The core concept tested is the financial mechanism and transaction costs associated with digital payment infrastructure.