Take context from the input text and decide on the accurate relationship between 'NBCUniversal' and 'Comcast' from the options provided.
Options: operator, chairperson, creator, founded by

Department store chain Macy's Inc said on Wednesday it would phase out Trump's line of menswear, while Comcast Corp's NBCUniversal said it would not air his annual Miss USA and Miss Universe pageants.
founded by