Take context from the input text and decide on the accurate relationship between 'comScore' and 'Rentrak' from the options provided.
Options: founded by, chairperson, owner of, product/material produced

In connection with the proposed merger, comScore intends to file a registration statement on Form S-4, which will include a preliminary prospectus and related materials to register the shares of comScore common stock to be issued in the merger, and comScore and Rentrak intend to file a joint proxy statement/prospectus and other documents concerning the proposed merger with the SEC.
owner of