The only preexisting recordings that are transferred onto compact disc are those that record companies believe will sell well enough on compact disc to be profitable. So, most classic jazz recordings will not be transferred onto compact disc, because few classic jazz recordings are played on the radio. The conclusion above follows logically if which one of the following is assumed? ['The only recordings that are played on the radio are ones that record companies believe can be profitably sold as compact discs.', 'Few compact discs featuring classic jazz recordings are played on the radio.', 'No recording that is not played on the radio is one that record companies believe would be profitable if transferred to compact disc.', 'Few of the preexisting recordings that record companies believe can be profitably transferred to compact disc are classic jazz recordings.']