In $1901,$ the first transatlantic wireless signal was broadcast. Developed and marketed by Italian inventor and engineer Guglielmo Marconi, Marconi radios $($wireless telegraph technology$)$ had many benefits, including ending the isolation of ocean travel and, for example, saving the lives of the approximately $700$ Titanic survivors $($more lifeboats would have saved the other $1,500$ passengers, but that$$s another issue$).$

The wireless telegraph brought its own set of problems, however. Which of the following statements identifies the major issue faced with the advent of the wireless telegraph?

The early wireless telegraph was highly controlled by the United States government, and it was only allowed to be used in activities related to war and national security.

Messages sent through the wireless telegraph were very expensive, and only the wealthy could afford to pay the high prices for the convenience.

The wireless telegraph required someone who was highly trained to operate it$,$ and unfortunately there were not enough people trained to meet the demand.

The messages had to pass through public air space, and ownership and regulation of the airwaves had yet to be determined.