Arrange historical “ages” in a logical technological timeline: Items: (a) Atomic Age (b) Metallic Age (c) Stone Age (d) Alloy Age Choose the correct earliest-to-latest progression.

Introduction / Context:
“Ages” here refer to broad eras marked by dominant materials/technologies. The task is to place them on a simple developmental timeline.

Given Data / Assumptions:

• Stone Age (c): earliest widespread tool material.
• Metallic Age (b): advent of metal tools (copper/bronze/iron individually nuanced).
• Alloy Age (d): purposeful alloy engineering beyond simple metals.
• Atomic Age (a): modern era of nuclear/atomic science.

Concept / Approach:
Order by general historical emergence: primitive materials precede refined metals, which precede advanced alloys, finally modern atomic science.

Step-by-Step Solution:

Verification / Alternative check:
This macro sequence aligns with the usual educational simplification of material culture progression.

Why Other Options Are Wrong:

• Any option placing atomic before metallic or alloy is anachronistic.
• Swapping metallic and alloy reverses refinement order.

Common Pitfalls:
Overthinking sub-eras (e.g., Bronze vs Iron); the question uses coarse blocks only.

Final Answer:
(c), (b), (d), (a)