Which of the Following Was NOT One of the Three

Which of the following was NOT one of the three main options Congress was faced with when dealing with choked and chaotic airwaves in the 1920s?

A) Commandeer the airwaves and create an entirely public system in which all broadcast stations were owned by government.
B) Let the private marketplace evolve on its own,with individual spectrum disputes being resolved in the courts.
C) Allow private ownership of broadcast stations,but only in accord with a government allocation process.
D) Convert to a system by which programming would be delivered directly by wire,rather than over the air.