Utilize the input text as a context reference, choose the right relationship between 'SABMiller' and 'Anheuser-Busch InBev' from the options.
Options: brand, publisher, currency, parent organization

U.S.-listed shares of Anheuser-Busch InBev were up 5.9 percent at $114.40 after the world's biggest beer maker approached rival SABMiller about a takeover.
parent organization