Take context from the input text and decide on the accurate relationship between 'Airbus A380' and 'Emirates' from the options provided.
Options: product/material produced, member of, brand, operator

And these deals follow Rolls-Royce's mammoth $9.2bn contract with Emirates back in April to supply Trent 900 engines -- as well as TotalCare maintenance packages -- to 50 Airbus A380 aircraft from 2016.
operator