Analogy — “King : Royal :: ? : Religious”. Select the noun whose conventional adjective is “religious,” mirroring subject → descriptor.

Introduction / Context:
The pair “King : Royal” links a subject (king) with its standard adjectival descriptor (royal). We must pick a noun that pairs with the adjective “religious” in the same conventional subject → descriptor way.

Given Data / Assumptions:

• Royal describes kingly matters; religious describes matters of faith or devoted persons.
• We should keep the mapping from concrete subject to its characteristic adjective.

Concept / Approach:
Among the options, “Saint” is a person specifically associated with religious devotion/holiness. The natural descriptor for a saint is “religious/holy,” matching the pattern.

Step-by-Step Solution:

Verification / Alternative check:
“Religious book,” “religious temple,” etc., are grammatical but less canonical than “royal” for king or “religious/holy” for saint as a direct identity-based descriptor.

Why Other Options Are Wrong:
They are actions/objects/institutions; the pairing to an inherent personal descriptor is weaker.

Common Pitfalls:
Confusing general adjective–noun collocations with identity/role descriptors.

Final Answer:
Saint