Which of the following inventions were done by Thomas Alva Edison? Options: A . &nbspIncandescent lamp B . &nbspPhonograph C (Gramophone) and microphone C . &nbspCarbon telephone transmitters D . &nbspAll of the above

Which of the following inventions were done by Thomas Alva Edison?

Question

Which of the following inventions were done by Thomas Alva Edison?

Options:

A . Incandescent lamp

B . Phonograph C (Gramophone) and microphone

C . Carbon telephone transmitters

D . All of the above

Answer: Option D

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