What Has Been the Defining Feature of Public Debate Regarding

What has been the defining feature of public debate regarding radio as a natural resource?

A) Broadcasting companies are eager for questions on their financial arrangements.
B) Public debate is vigorous and intense over the role of radio.
C) There is little public debate over the issue.
D) Record companies want to encourage debate in order to create the best environment for artists to grow on the airwaves.
E) All of the options are correct.