Planemaker Airbus Group SE and aircraft lessor Intrepid Aviation Ltd are the biggest creditors to Skymark, which ran into financial trouble after embarking on an ambitious expansion that included buying Airbus A380 jumbo jets.
Take context from the input text and decide on the accurate relationship between 'Airbus Group' and 'Airbus' from the options provided.
Options: subsidiary, developer, location of formation, parent organization