LONDON (Reuters) - British electrical goods and mobile phone retailer Dixons Carphone has sealed a deal with Sprint Corp. , the U.S. mobile network operator, that could see it open and manage up to 500 Sprint-branded stores in the United States.
Take context from the input text and decide on the accurate relationship between 'Dixons Carphone' and 'LONDON' from the options provided.
Options: product/material produced, brand, distributed by, headquarters location