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Travis is writing an essay over the advancement of the polio vaccine in the 1950s. Before the vaccine, people were vulnerable to a disease that could cause paralysis. The development of the vaccine helped save many lives. Which of the following would be the best source for Travis to use for his paper?

A. a recent issue of a scientific magazine

B. a paper written by a person who survived the disease in the 1950s

C. an autobiography of the scientist who developed the polio vaccine

D. a map of diseases around the world

Answer :

Among the choices provided, the best source that Travis could use for writing his paper is:

B. a paper written by a person who survived the disease in the 1950s

A survivor of the disease with the aid of the vaccine can somehow provide more in-depth true to life experiences that are essential in enumerating the advantages of using it. These would be more convincing to the readers because it is based on facts.

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