Identify the correct part–whole mapping to complete the analogy: “Page : Book :: Leaf : ?” Choose the larger entity that a leaf is a part of.

Introduction / Context:
Part–whole analogies test whether you can identify the container or larger entity a component belongs to. A page is part of a book; similarly, a leaf belongs to a specific larger living structure.

Given Data / Assumptions:

• Page → book (component → whole).
• Leaf → part of a plant; directly attached to a stem/branch of a tree or plant.

Concept / Approach:
Choose the immediate natural whole for a leaf. While many leaves collectively form part of a forest ecosystem, the direct organismic whole is a “tree.” This mirrors the precision in page → book (not page → library).

Step-by-Step Solution:
1) Fix relation: part → immediate whole.2) Map leaf → tree (or plant), the direct organismic whole.3) Select “Tree” to maintain symmetry with the first pair’s granularity.

Verification / Alternative check:
“Root” is a different plant organ, not the whole. “Forest” is too large a system; “red” is a color attribute; “branch” is a sub-part, not the complete whole.

Why Other Options Are Wrong:

• Forest: Ecosystem-level container; mismatched scale.
• Root: Organ-level item; not the whole.
• Red: Attribute, not a whole.
• Branch: Part of a tree; not the whole organism.

Common Pitfalls:
Choosing a related organ or an ecosystem rather than the immediate organismic whole.

Final Answer:
Tree