Place-based hierarchy (smallest to largest / containment): Arrange — 1. Apartment, 2. Town, 3. Street, 4. Building, 5. Complex.

Introduction / Context:
Hierarchical ordering problems require you to organize entities by containment or scale. Here we move from an individual dwelling unit up to a municipality.

Given Data / Assumptions:

• Entities: Apartment → Building → Complex → Street → Town.
• Assume common urban planning usage: multiple apartments form a building; multiple buildings can form a complex; complexes/buildings lie on streets within a town.

Concept / Approach:
Order by increasing spatial scope and administrative level.

Step-by-Step Solution:

Verification / Alternative check:
Check containment: apartments ⊂ building ⊂ complex; complexes lie on streets; streets lie within towns.

Why Other Options Are Wrong:
They invert containment (e.g., placing Town before Building).

Common Pitfalls:
Confusing “complex” with “building” or treating “street” as smaller than a complex.

Final Answer:
1, 4, 5, 3, 2