Which of these product innovations was initially rejected by Western Union in 1876 as having 'no commercial possibilities' but went on to revolutionize global communication?

Some product innovations fundamentally change how we live and work, representing major milestones in human ingenuity. This poll tests your knowledge about a groundbreaking invention that transformed communication technology and ultimately led to the modern digital age we experience today. Think about the evolution of information technology and the key breakthroughs that made today's connected world possible.

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The telephone, invented by Alexander Graham Bell
The telegraph, developed by Samuel Morse
The radio transmitter, created by Guglielmo Marconi
The transistor, invented at Bell Laboratories