Effective from 1 August 2015, cardholders of SAA Voyager Gold and platinum MasterCard credit cards within Ghana will benefit from annual credit card fee which USD28 and Voyager earn rate which 1 SAA Voyager mile for USD 1.50 spend respectively.
Analyze the relationship between 'MasterCard' and 'credit card' within the context of the input sentence.
Options: parent organization, subsidiary, product/material produced, developer