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 second vaccination is beneficial because
A)it contains plasma cells that survive longer than 4-5 days.
B)it stimulates production of a higher concentration of antibodies in the bloodstream.
C)it requires two injections to stimulate antibody formation.
D)it keeps previously produced plasma cells circulating in the bloodstream.

Question

Quizplus · Accepted Answer

The paragraph states that the second vaccination "ensures that soldiers stationed there are fully protected from exposure to the disease" by providing additional protection against smallpox. It also states that the soldiers receive vaccinations to protect against several diseases, and in this case, a second vaccination against smallpox is given specifically because of an imminent threat. The paragraph does not mention plasma cells or require two injections to stimulate antibody formation, but it does suggest that the second vaccination stimulates the production of a higher concentration of antibodies in the bloodstream, leading to greater protection.

After Reading the Paragraph Below, Answer the Questions That Follow