The word 'vaccination' derives from 'vaccinia,' the Latin term for cowpox, which links to Edward Jenner's use of cowpox in his smallpox experiments. This highlights the connection between the vaccine and its source. The correct answer is B.
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The word "vaccination" originates from the Latin term "vaccinia," meaning cow, linking it to the use of cowpox in Edward Jenner's smallpox experiments. This illustrates the importance of the term in the context of vaccines. Thus, the correct answer highlights the connection between the word and its origins in Latin. ;