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Who invented the radio?

AThomas Edison
BAlexander Graham Bell
CGuglielmo Marconi
DNikola Tesla

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Correct Answer: C: Guglielmo Marconi

Explanation: The correct answer is C: Guglielmo Marconi. Guglielmo Marconi invented the practical radio communication system, sending the first transatlantic radio signal in 1901. He shared the 1909 Nobel Prize in Physics for his contributions to wireless telegraphy.

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