Table 181
Antibody Titer -In Table 18

question 56

Multiple Choice

Table 18.1
Antibody Titer
$$\begin{array} { | l | r | r | r | r | } \hline & \text { Day 1 } & { \text { Day 7 } } & \text { Day 14 } & \text { Day 21 } \\\hline \text { Patient A } & 0 & 0 & 256 & 512 \\\hline \text { Patient B } & 128 & 256 & 512 & 1024 \\\hline \text { Patient C } & 0 & 0 & 0 & 0 \\\hline \text { Patient D } & 128 & 128 & 128 & 128 \\\hline\end{array}$$
-In Table 18.1,what is the most likely and reasonable explanation for the results observed in Patient C?

• A)The patient has advanced HIV/AIDS,with no ability to make an immune response.
• B)The patient was not exposed to the pathogen and has not become infected,so no response is being produced over time.
• C)The patient has significantly stronger innate immunity than adaptive immunity mechanisms.
• D)The patient is producing a protective adaptive response that doesn't involve antibodies.

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