Utilize the input text as a context reference, choose the right relationship between Eurozone and Euro 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.

Growth of retail sales in the Euro Area accelerated at the start of the third quarter, reflecting upturns in each of the bloc’s big-three nations, latest Eurozone Retail PMI (purchasing managers' index) data showed.

Answer: currency