Question

How did radio companies such as NBC™, whose actual broadcasts were free, make money? The media was a not-for-profit organization until the advent of television. Companies split and sold off those newly created companies for a profit. Broadcasters sold airtime to sponsors who then used it to run advertisements for their goods and services. Broadcasts were not, in fact, free. Rather, listeners paid a subscriber's fee to hear the broadcasts. Broadcast companies received a cut of the profits from the sales of radio equipment.

Answer 1

The correct answer is option C.   Broadcasters sold airtime to sponsors who then used it to run advertisements for their goods and services.   Due to this the radio programmes on NBC were delayed for a few minutes and commercial audios were played in the meanwhile.  These small airtime ads brought lots of money for NBC.