Analogy — Complete the pair: Contamination : Food :: Infection : ? Choose the term that stands to “Infection” in the same way that “Food” stands to “Contamination”.

Introduction / Context:
Analogy questions test whether you can identify the precise relationship binding the first pair and then apply the same relationship to complete the second pair. Here, “Contamination : Food :: Infection : ?” asks you to map the agent–affected/host relationship from the first pair onto the second, selecting the target that mirrors the role of “Food”.

Given Data / Assumptions:

• Contamination is a state or condition that affects food.
• Infection is a state or condition that affects a living organism (a host).
• Candidate answers include entities or causes related to disease: Germs, Disease, Body, Microbes, None of these.

Concept / Approach:
The first pair encodes “affected object” rather than “cause”. Food is not the cause of contamination; it is the substrate that becomes contaminated. Therefore, in the second pair, we need the entity that becomes infected (the host), not the causal agent of infection (e.g., germs, microbes) and not a downstream condition (e.g., disease).

Step-by-Step Solution:

Verification / Alternative check:
Check part of speech and role parity: “Contamination” and “Infection” are conditions; “Food” and “Body” are recipients/hosts, preserving structural symmetry (Condition : Host). Substituting other options breaks this symmetry by switching to causes or outcomes.

Why Other Options Are Wrong:

• Germs: Causal agents of infection, not the infected host.
• Disease: A broader pathologic state; not the host.
• Microbes: Synonymous with causal agents; wrong role.
• None of these: Invalid since “Body” fits perfectly.

Common Pitfalls:
Confusing cause with effect or host; picking “Germs/Microbes” because they co-occur with infection but do not play the same role as “Food” in the first pair.

Final Answer:
Body