Analyze the relationship between 'Yum Brands' and 'KFC' within the context of the input sentence.
Options: owner of, employer, owned by, subsidiary

Aug 18 (Reuters) - Yum Brands Inc on Tuesday announced new leadership for its China business as investor activists lobby for the owner of the KFC and Pizza Hut brands to spin off that business, which is its biggest driver of revenue and profit.
owner of