Utilize the input text as a context reference, choose the right relationship between 'Eurozone' and 'Euro' from the options.
Options: distributed by, currency, industry, employer

Clearly, a weak Eurozone has not been good news for the company and, with the Euro depreciating considerably as a result of a looser monetary policy being employed by the ECB, Synthomer's financial performance has been held back somewhat by currency headwinds.
currency