Take context from the input text and decide on the accurate relationship between 'SABMiller' and 'LONDON' from the options provided.
Options: parent organization, distributed by, headquarters location, publisher

LONDON (Reuters) - Brewer Anheuser-Busch InBev (ABI.BR) may raise its takeover offer for SABMiller (SAB.L) ahead of Wednesday's bid deadline, a source close to the matter said on Sunday.
headquarters location