When a "New" Antigen First Challenges the Immune System,if the Primary

question 40

Multiple Choice

When a "new" antigen first challenges the immune system,if the primary immune response produces B cells,what are the fates of those B cells?
I-Some of the B cells become plasma cells that secrete antibodies.
II-Some of the B cells become memory cells and can produce a swifter response if the body encounters that particular antigen again.
III-Some of the B cells secrete chemicals called pyrogens that travel to the brain inducing a fever.

• A)just II
• B)just I
• C)II and III
• D)I and II
• E)I,II,and III

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