Solid-body Electric Guitar
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Charles Babbage
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Les Paul
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Percy Spencer
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Guglielmo Marconi
B
Correct answer
Explanation
Les Paul, a guitarist and inventor, pioneered the solid-body electric guitar design in the 1940s, revolutionizing popular music. Charles Babbage worked on early computers, Percy Spencer invented the microwave, and Guglielmo Marconi developed radio telegraphy.