Utilize the input text as a context reference, choose the right relationship between MasterCard and credit card from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

NEW YORK (Reuters) - A U.S. appeals court on Monday weighed whether to uphold the approval of an estimated $5.7 billion antitrust settlement by MasterCard Inc (MA.N) and Visa Inc (V.N) with merchants over credit card fees despite the objection of several major retailers.

Answer: product_or_material_produced