After Reading the Paragraph Below, Answer the Questions That Follow

After reading the paragraph below, answer the questions that follow.
To protect U.S. soldiers serving overseas, each soldier receives vaccinations against several diseases, including smallpox, before deployment. Following intelligence about an imminent smallpox threat in Iraq, the U.S. Army wants to ensure that soldiers stationed there are fully protected from exposure to the disease, so all the soldiers in the threat zone are given a second vaccination against smallpox.
-The first vaccination provides immunity because

A) a localized inflammatory response is initiated.
B) the vaccine contains manufactured antibodies against smallpox.
C) antigenic determinants in the vaccine activate B cells, which form plasma cells as well as memory cells.
D) the vaccine contains antibiotics and other drugs that kill the smallpox virus.

Correct Answer:

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