Analogy — Meat : Vegetarian :: Liquor : ? Pick the term describing a person who, like a vegetarian avoiding meat, abstains from alcoholic drinks.

Introduction / Context:
The first pair relates a consumable to the category of person who abstains from it: a vegetarian abstains from meat. We need the corresponding term for someone who abstains from liquor. This is a classic vocabulary/analogy item involving lifestyle descriptors.

Given Data / Assumptions:

• Vegetarian → person who does not eat meat.
• We seek the term for a person who does not consume alcohol.
• Options include several adjectives or labels that are not about alcohol abstinence.

Concept / Approach:
Preserve the “item avoided : abstainer label” structure. The precise English word for a person who abstains from alcohol is “teetotaller.” The remaining options are unrelated to the abstinence domain (e.g., personality type or derogatory adjectives), so they do not fit the relation required by the analogy.

Step-by-Step Solution:

Verification / Alternative check:
Dictionary definitions: teetotal/teetotaller = advocating or practicing total abstinence from alcoholic beverages.

Why Other Options Are Wrong:

• Insane — mental health descriptor; irrelevant.
• Introvert — personality orientation; unrelated to drinking.
• Foolish — evaluative adjective; unrelated to abstinence.

Common Pitfalls:
Choosing a morally toned or personality term rather than the specific abstinence label demanded by the analogy.

Final Answer:
Teetotaller