Book composition — place linguistic and structural units in the order they combine to form a book: (a) Book (b) Words (c) Letters (d) Sentences (e) Chapters (f) Pages

Introduction / Context:
The task is to order language units and physical components in how they typically build up to a finished book. We move from smallest linguistic symbols to the complete object sold to readers.

Given Data / Assumptions:

• Linguistic units: Letters → Words → Sentences.
• Physical collation: Pages → Chapters → Book.
• We assume a conventional print workflow.

Concept / Approach:
Letters form words; words form sentences. Sentences are laid out on pages; pages assemble into chapters; chapters compile into the book. This separates linguistic hierarchy from physical binding while preserving the natural build-up.

Step-by-Step Solution:
1) Letters (c) → smallest symbols.2) Words (b) → sequences of letters.3) Sentences (d) → sequences of words expressing complete thoughts.4) Pages (f) → printed layouts carrying sentences.5) Chapters (e) → collections of pages grouped by topic or structure.6) Book (a) → collection of chapters bound together.

Verification / Alternative check:
Publishing and typography guides outline the same conceptual and physical hierarchies.

Why Other Options Are Wrong:

• c, b, f, e, d, a: Puts sentences after chapters; inverted.
• c, b, e, d, f, a or c, b, d, e, f, a: Misplace chapters relative to pages.
• b, c, d, f, e, a: Starts with words, skipping letters.

Common Pitfalls:
Confusing linguistic composition with physical assembly; ensure sentences precede pages in logic.

Final Answer:
c, b, d, f, e, a