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.
Refer to the input text as context and select the correct relationship between 'MasterCard' and 'credit card' from the available options.
Options: industry, position held, founded by, product/material produced