What is the relationship between Eurozone and Euro in the context of the input sentence. Choose an answer from: 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.

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.

Answer: currency