Analogy — choose the pair that mirrors “enclosing boundary to enclosed entity” as in Border : Country.

Introduction / Context:“Border : Country” expresses a boundary that encloses or outlines an entity. We need a pair in which the first term is an enclosing structure and the second term is the enclosed object, maintaining the same direction (boundary → enclosed).

Given Data / Assumptions:

• A border bounds a country.
• Look for a structural enclosure around an object or image.
• Everyday artifacts are acceptable analogues.

Concept / Approach:A frame encloses or outlines a picture just as a border delineates a country. The relationship is spatial and structural, not merely associative.

Step-by-Step Solution:

Verification / Alternative check:Replace with definitions: “Enclosing boundary : enclosed visual.” The mapping for frame and picture is faithful to the border-country relation.

Why Other Options Are Wrong:

• Pen : Cap — cap encloses pen, but order is reversed (object : enclosure).
• Book : Cover — typically the cover encloses the book’s pages; order again reversed.
• Handle : Shade — no enclosing relation; mismatched objects.

Common Pitfalls:Ignoring the direction or accepting loose associations. Ensure the first item is the boundary/enclosure and the second is the enclosed object.

Final Answer:Frame : Picture