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Which of these inventions arose from an attempt to help hearing-impaired people? the multiplex telegraph. the telephone the phonograph the motion-picture machine

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Which of these inventions arose from an attempt to help hearing-impaired people?
the multiplex telegraph.
the telephone
the phonograph
the motion-picture machine

Which of these inventions arose from an attempt to help hearing-impaired people? the multiplex telegraph. the telephone the phonograph the motion-picture machine

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PaulaElite · Tutor for 8 years

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The invention that arose from an attempt to help hearing-impaired people is the telephone.
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