Take context from the input text and decide on the accurate relationship between 'Airbus' and 'Airbus Group' from the options provided.
Options: parent organization, creator, location of formation, legal form

Industry sources have said Airbus Group is exploring increasing its stake in tandem with BAE Systems as part of a wider move that could see Airbus cede its 50 percent share of turboprop maker ATR to its joint-venture partner Finmeccanica.
parent organization