Cultural ages — arrange these eras in broadly accepted historical order: (a) Atomic Age (b) Metallic Age (c) Stone Age (d) Alloy Age

Introduction / Context:
Order techno-cultural eras from earliest tool materials to modern energy age.

Given Data / Assumptions:
Stone Age → Metallic Age → Alloy Age → Atomic Age.

Concept / Approach:
Advances progress from natural stone tools to metalworking, then alloys, then atomic science.

Step-by-Step Solution:
Stone Age (c) earliest.Metallic Age (b) follows with native metals.Alloy Age (d) adds metallurgy sophistication.Atomic Age (a) modern nuclear era.

Verification / Alternative check:
World history outlines reflect this arc.

Why Other Options Are Wrong:
They place atomic or alloy ages before stone/metal beginnings.

Common Pitfalls:
Assuming “metallic” includes alloys; alloys are a distinct, later sophistication.

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