Order the social units from the smallest to the largest grouping within human society. (i) Caste (ii) Family (iii) Newly married couple (iv) Clan (v) Species

Introduction / Context:
This ordering moves from the most specific unit to increasingly broad social/biological categories.

Given Data / Assumptions:

• Newly married couple is a dyadic unit.
• Family is a small kin unit.
• Caste is a wider social category.
• Clan is a larger lineage grouping.
• Species is the broadest biological category.

Concept / Approach:
Scale by membership size and inclusiveness.

Step-by-Step Solution:
1) (iii) Couple.2) (ii) Family.3) (i) Caste.4) (iv) Clan.5) (v) Species.

Verification / Alternative check:
Each step nests within the next larger group.

Why Other Options Are Wrong:
Placing clan/species before smaller units defies scale; family before couple is also illogical for unit size.

Common Pitfalls:
Confusing sociological with biological categories.

Final Answer:
(iii), (ii), (i), (iv), (v)