What is the relationship between 'Topps Tiles' and 'Retail' in the context of the input sentence.
Options: chief executive officer, industry, parent organization, publisher

For example, Next , WH Smith and Topps Tiles have been thriving, and posting stellar share price gains, while home-shopping group N Brown , the big supermarkets and Home Retail (owner of Argos and Homebase ) have been struggling, and their shares have suffered.
industry