Dixons Carphone (LSE: DC.L - news ) is venturing stateside by teaming up with US network Sprint to open 20 retail stores, in the first stage of a partnership that could extend to 500 sites.
Refer to the input text as context and select the correct relationship between 'Dixons Carphone' and 'retail' from the available options.
Options: chief executive officer, publisher, industry, founded by