Take context from the input text and decide on the accurate relationship between 'Dixons' and 'retail' from the options provided.
Options: industry, chairperson, brand, chief executive officer

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.
industry