Answer:
The established the Federal Radio Commission and required broadcasters to obtain a license to broadcast on specific frequencies ws set in the:
a. Federal Radio Act (1927)
Explanation:
The Act states its mission, regarding licenses, in the following extract:
<em>"...this Act is intended to regulate all forms of interstate and foreign radio transmissions and communications within the United States, its Territories and possessions; to maintain the control of the United States over all the channels of interstate and foreign radio transmission; and to provide for the use of such channels, but not the ownership thereof, by individuals, firms, or corporations, for limited periods of time, under</em><em> licenses granted by Federal authority, and no such license shall be construed to create any right, beyond the terms, conditions, and periods of the license.</em><em>"</em>