What is the relationship between 'BBC Worldwide' and 'BBC' in the context of the input sentence.
Options: distributed by, parent organization, location of formation, stock exchange

He said: “Any proposal to remove it [BBC Worldwide] from the BBC simply doesn’t make economic sense.” Mr Davie resisted the idea of selling UKTV as BBC Worldwide reported a record annual return to the BBC of £226.5m.
parent organization