Refer to the input text as context and select the correct relationship between 'MasterCard' and 'credit card' from the available options.
Options: manufacturer, product/material produced, operator, distribution format

By the Oct. 1 deadline, credit card companies and retailers will shift to "smart cards" using a new technology called EMV—which stands for Europay, MasterCard and Visa, the three companies that created the standard for processing payments.
product/material produced