Take context from the input text and decide on the accurate relationship between 'Afren' and 'LONDON' from the options provided.
Options: headquarters location, parent organization, owner of, product/material produced

LONDON (ShareCast) - (ShareCast News) - Embattled oil explorer Afren (LSE: AFR.L - news ) suspended its shares amidst uncertainty over its financial position, though analysts were sceptical about the real reasons for the move.
headquarters location