The top riser on the FTSEurofirst 300 was United Internet AG , which climbed 7.2 percent after the German Internet service provider said it may float its business offering web-hosting and other online services to corporate customers.
Take context from the input text and decide on the accurate relationship between 'United Internet' and 'Internet service provider' from the options provided.
Options: product/material produced, director/manager, industry, brand