Difficulty: Easy
Correct Answer: d, c, b, e, a
Explanation:
Introduction / Context:A classic manufacturing chain problem from raw forest resources to printed books.
Given Data / Assumptions:
Concept / Approach:Respect material dependencies at each stage.
Step-by-Step Solution:
Forest (d) → Timber (c) → Pulp (b) → Paper (e) → Book (a).Verification / Alternative check:Book cannot precede paper; paper cannot precede pulp.
Why Other Options Are Wrong:
Common Pitfalls:Confusing timber with pulp.
Final Answer:d, c, b, e, a
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