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.

Mr Archer continued: "In fact if the near-term contagion to the rest of the eurozone from a Greek exit was contained, the euro could well strengthen against sterling over the longer term, on belief that the eurozone was better off without Greece.

Answer: currency