Take context from the input text and decide on the accurate relationship between 'Dixons Carphone' and 'LONDON' from the options provided.
Options: stock exchange, chief executive officer, headquarters location, developer

LONDON (ShareCast) - Decent gains from blue chips BP and Dixons Carphone (LSE: DC.L - news ) helped UK markets to rise on Thursday, bucking the negative trend seen across Europe as investors started to trim positions ahead of a pivotal weekend for Greece.
headquarters location