Arrange the paper-making chain from source to final book: Items: a. Book b. Pulp c. Timber d. Jungle e. Paper Choose the correct production sequence.

Introduction / Context:
A classic manufacturing chain problem from raw forest resources to printed books.

Given Data / Assumptions:

• d = Jungle (forest) → wood source.
• c = Timber → processed wood.
• b = Pulp → fibrous slurry.
• e = Paper → sheets produced from pulp.
• a = Book → printed/bound final product.

Concept / Approach:
Respect material dependencies at each stage.

Step-by-Step Solution:

Verification / Alternative check:
Book cannot precede paper; paper cannot precede pulp.

Why Other Options Are Wrong:

• Any option ending with forest reverses causality.

Common Pitfalls:
Confusing timber with pulp.

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