Utilize the input text as a context reference, choose the right relationship between MasterCard and purchase 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.

“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.

Answer: headquarters_location