Consider the following sentences:
[A] By standardizing interchangeable parts, the assembly line revolutionized mass manufacturing.
[B] Workers repeatedly performed specialized, subdivided tasks rather than assembling an entire product from scratch.
[C] While this innovation cut production costs and consumer prices dramatically, it frequently heightened occupational monotony.
[D] Industrial psychologists consequently emerged to study worker fatigue and ergonomics in factory environments.

What is the best sequential order?

Answer and explanation

Correct answer: B. A -> B -> C -> D

  1. Step 1: Identify the overarching thesis and historical development. Sentence [A] introduces the core manufacturing innovation: the assembly line and interchangeable parts.
  2. Step 2: Sentence [B] explains how the assembly line operated in practice (workers performing subdivided tasks). Sentence [C] introduces the trade-off of this innovation (economic efficiency versus psychological monotony), and Sentence [D] resolves this problem with the emergence of industrial psychology ("consequently emerged to study worker fatigue..."). This yields the natural progression: A -> B -> C -> D.
Answer
A -> B -> C -> D.

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