Multiple choice general knowledge math & puzzles

The ..... pen was first introduced to the United States in October of 1945.

  1. ballpoint

  2. highlighter

  3. marker

  4. gel
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A Correct answer
Explanation

The ballpoint pen was commercially introduced in the United States in October 1945, sold by Reynolds International Pen Company. Earlier fountain pens and dip pens dominated the market, but ballpoint technology (invented earlier in Europe) only reached American consumers after World War II. Gel pens, highlighters, and markers are later inventions from the 1960s-1980s.

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