Take context from the input text and decide on the accurate relationship between 'Qantas' and 'Alan Joyce' from the options provided.
Options: founded by, chief executive officer, headquarters location, subsidiary

Chief executive Alan Joyce said the airline's operations at Sydney Airport had faced an uncertain future after that date, including possibly being shifted to Terminal 2, which currently houses rival Virgin Australia, Qantas subsidiary Jetstar and a number of smaller regional operators.
chief executive officer