What is the relationship between Mastercard and Credit card in the context of the input sentence. Choose an answer from: 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.

Credit card companies in the United States are pushing businesses to follow suit, and start accepting the microchips through a liability shift on Oct. 1, when American Express , Discover , Maestro, Mastercard and Visa will relinquish their liability for EMV card-present fraud to any businesses not accepting EMV.

Answer: product_or_material_produced