Which of the following did samuel morse invent or improve?

the light bulb
the airplane
the telegraph
the telephone

The correct answer is C. Telegraph.

Samuel Breese Morse was known as an American inventor and a painter.

First he established his reputation as a painter in portrait. While he was in middle age, he invented telegraph of single wire which was being based on telegraphy in Europe.

Morse helped in commercial way of using telegraphy and co-developer of morse code.

The correct answer is C) the telegraph

I just took the test

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