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In what year did the following events take place: Jonas Salk began testing his polio vaccine on volunteers, including his wife, his children and himself. The first animal, a tadpole, was cloned. The New York Yankees defeated the Brooklyn Dodgers in the World Series.

  1. 1956
  2. 1950
  3. 1952
  4. 1954

Answer

The correct answer is C) 1952.

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