Take context from the input text and decide on the accurate relationship between 'FedEx' and 'TNT' from the options provided.
Options: operator, publisher, owner of, stock exchange

-- U.S. packages delivery company FedEx (Swiss: FDX.SW - news ) to acquire Dutch peer TNT (notified July /deadline extended to Dec. 8 from Aug. 3 after the European Commission opened an in-depth investigation)
owner of