Utilize the input text as a context reference, choose the right relationship between 'A350' and 'Airbus' from the options.
Options: director/manager, founded by, owned by, developer

At the handover of Qatar Airways’ first Airbus A350 at Toulouse last December, Al Baker told ATW that Al Maha was only awaiting the document before starting services, but that this was proving to be a “complex” process.
developer