What is the relationship between Areva and France 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.

The EPRs being built in France and Finland were designed by Areva (Paris: FR0011027143 - news ) , another state-owned French firm, but EDF has now taken over Areva's reactor arm and is working on an upgraded EPR it hopes will be easier and cheaper to build.

Answer: parent_organization