'Horse' is related to 'Hoof' (the characteristic foot structure) in the same way as 'Eagle' is related to which anatomical structure?

Introduction / Context:
This analogy tests recognition of a defining anatomical relationship between an animal and the distinctive structure at the end of its limb. A horse is characteristically associated with a hoof. We must identify the parallel, definitive structure for an eagle.

Given Data / Assumptions:

• Relation type in the stem: animal → characteristic terminal limb structure.
• Horse → hoof (a single, keratinized structure adapted for running).
• Eagle is a raptor (bird of prey) adapted for seizing prey.
• Options provide several limb-related terms; only one precisely names the raptor’s grasping structure.

Concept / Approach:
Maintain the same category and level of specificity. For a horse, the correct term is 'hoof', not just 'foot'. For a raptor like an eagle, the precise structure used to grasp prey is the talon, which is a specialized 'claw'. Therefore, the accurate one-word correlate among the options is 'claw'.

Step-by-Step Solution:
1) Extract relation: animal → distinctive foot/terminal structure.2) Validate example: horse → hoof (correct specificity).3) Identify eagle’s terminal structure: talons (i.e., claws).4) Map to available option: 'Claw' matches the required precision.

Verification / Alternative check:
Field guides and ornithology texts describe raptors as possessing sharp, curved claws (talons) for catching and holding prey. This mirrors the horse’s 'hoof' as the specific structure at the end of the limb adapted to its lifestyle (running vs hunting).

Why Other Options Are Wrong:

• Clutch: An action (to grasp), not an anatomical part.
• Leg: Too generic; lacks the specificity of 'hoof' vs 'claw'.
• Foot: Generic; does not capture the specialized predatory structure.
• None of these: Incorrect since 'Claw' is exact.

Common Pitfalls:
Choosing a generic term (foot/leg) rather than the specialized structure that defines the animal’s adaptation. Analogy precision requires equal granularity in both pairs.

Final Answer:
Claw