Take context from the input text and decide on the accurate relationship between 'Mattel' and 'Barbie' from the options provided.
Options: owned by, owner of, creator, employer

Bratz's return is well-timed, after Barbie has already taken a knocking from the flyaway success of Disney's Frozen-related merchandise, which recently transferred its licensing rights from Mattel to Hasbro (NasdaqGS: HAS - news ) as of 2016.
owner of