Just seven months into his term, Tsipras lost his majority in parliament after far-left rebels in his party opposed tough new conditions demanded by Eurozone countries for the 86 billion euro rescue package: Hikes in sales and business taxes, changes to public administration and labor laws opposed by unions, and further pension cuts to address the country's dramatically aging population.
Take context from the input text and decide on the accurate relationship between 'Eurozone' and 'euro' from the options provided.
Options: business division, location of formation, founded by, currency