Immediately after world war i, the u. s. government, concerned that the development of radio would be delayed by patent fights and that its future would be controlled by a foreign company (british marconi), established a government-sanctioned monopoly to run radio, called:

The RCA Corporation, or Radio Corporation of America, was founded in 1919 as a response to the development of radio. It was initially under the control of General Electric (GE). RCA was the primary communications firm in the United States, that also contributed to the creation of the National Broadcasting Company (NBC). 

19th amendment granted women the right to vote. the 19th amendment guarantees all american women the right to vote.

the correct answer is d

a conference committee is a group of congress representatives appointed by the senate and the house to reach an agreement over a bill that had different versions in each chamber. this is due to the fact that, to pass a law. both the house and the senate must agree on the exact same content and wording of the bill to present it to the president.