The United States has never had a government owned communication system. Great Britain has never had a privately owned communication system. Great Britain developed communication technology so quickly because it adhered to the public interest model of development. All are correct. The 1934 Act provided for rate of return regulation of common carriers.
All statements are true.
The U.S. government has used anti-trust actions to break up a number of combined companies in the past. The FCC refused to license stations for four years until it worked out an allocation scheme. RCA curtailed development of TV while it worked on FM radio. The U.S. government restricted further commercial development of television in the 1960s so it could establish public broadcasting. If you have enough time, please tell us how you think the course is going up until this point.