“Accepted in over 210 countries, wherever MasterCard is accepted, the credit cards are by far the fastest way to earn Miles with a ticket purchase to fly on SAA or make qualified merchant purchases,” said Samuel Ashitey Adjei, MD of Ecobank Ghana.
Analyze the relationship between 'MasterCard' and 'purchase' within the context of the input sentence.
Options: developer, location of formation, chairperson, headquarters location