Refer to the input text as context and select the correct relationship between 'ComScore' and 'Rentrak' from the available options.
Options: platform, product/material produced, founded by, owner of

NEW YORK (AP) -- Shares of ComScore soared more than 8 percent before the opening bell Wednesday on news that it would acquire Rentrak in an all-stock deal to create a larger ratings and media analysis company.
owner of