Context-era analogy: “Dinosaur : Dragon” — select the pair that mirrors the typical contexts (prehistoric reality vs medieval legend).

Introduction / Context:
Dinosaurs are real prehistoric creatures (primeval world), whereas dragons are legendary creatures often situated in medieval lore. The analogy contrasts typical contexts/time-frames rather than biological categories.

Given Data / Assumptions:

• Dinosaur → primeval/prehistory context.
• Dragon → medieval legend/folklore context.

Concept / Approach:
Select the pair that reflects those respective contexts in abstract adjectives.

Why Other Options Are Wrong:

• Evolution : Revelation → unrelated processes.
• Gorilla : Soldier → living being vs profession; mismatched classes.
• Snow : Ice → physical substances/states; not contextual eras.
• Mammal : Reptile → taxonomy; shifts the relation away from “real vs legendary era.”

Final Answer:
Primeval : Medieval