Arrange family relations by generation from youngest to oldest: Items: (a) Grandfather (b) Great grandfather (c) Grandson (d) Son (e) Father Choose the correct youngest-to-oldest sequence.

Introduction / Context:
This tests understanding of generational hierarchy in a family lineage.

Given Data / Assumptions:

• Youngest: Grandson (c).
• Next: Son (d).
• Then: Father (e).
• Then: Grandfather (a).
• Oldest: Great grandfather (b).

Concept / Approach:
Move up one generation at a time from the child to his ancestors.

Step-by-Step Solution:

Verification / Alternative check:
Reversing yields oldest-to-youngest, which is also coherent, confirming relative order.

Why Other Options Are Wrong:

• Sequences placing ancestors below descendants break generational order.

Common Pitfalls:
Confusing “grandfather” vs “great grandfather”.

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