Analogy — Person vs. absence of virtue: Truthfulness : Liar :: Loyalty : ? Choose the person-term that stands to “Loyalty” as “Liar” stands to “Truthfulness”.

Introduction / Context:
The pair “Truthfulness : Liar” links a virtue to a person who lacks or violates it. We must mirror this pattern for “Loyalty : ?”.

Given Data / Assumptions:

• Liar → one who does not tell the truth (absence/violation of truthfulness).
• Loyalty → faithfulness or allegiance; its negation in a person is “treachery/treason”.
• Candidate nouns include trait-based roles (Traitor) and unrelated roles (Worker), plus adjectives (Diligent, Faithful).

Concept / Approach:
Preserve the mapping “Virtue : person who violates it.” Therefore, the complement of “Loyalty” is embodied by “Traitor”.

Step-by-Step Solution:

Verification / Alternative check:
Check part-of-speech symmetry: both “Liar” and “Traitor” are agentive nouns labeling the person who violates the virtue.

Why Other Options Are Wrong:

• Worker: Occupational noun, unrelated to loyalty.
• Diligent: Adjective; not an agentive violator.
• Faithful: Synonymous with loyal; opposite of required.
• None of these: Invalid since “Traitor” is correct.

Common Pitfalls:
Choosing an adjective (e.g., Faithful) and breaking the person-role symmetry set by “Liar”.

Final Answer:
Traitor