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  1. For what does the world owe Almon Strowger a debt of gratitude?

    2. A.
    Parking Meters
    B.
    Vending Machines
    C.
    Automatic Telephone Exchanges
    D.
    Traffic Lights

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    Workspace

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    Answer : Option C

    Explanation :

    He was an undertaker, and legend has it, he developed the automatic switch in 1889, to stop competitors from getting his work!

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