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Difficulty: MediumSubordination and Coordination

During the mid-twentieth century, physicist Chien-Shiung Wu conducted a series of precise experiments on beta decay. Wu's colleagues had theorized that parity was always conserved, her experimental results, however, disproved this long-held law of physics.

Which of the following choices best replaces the underlined portion to create a grammatically correct sentence that logically coordinates the two clauses?

  1. A
    NO CHANGE
  2. Although Wu's colleagues had theorized that parity was always conserved, her experimental results disprovedAnswer
  3. C
    Wu's colleagues had theorized that parity was always conserved; because her experimental results disproved
  4. D
    Wu's colleagues had theorized that parity was always conserved, so her experimental results disproved

Answer

The correct answer is the option that subordinates the first clause with 'Although' to establish a logical contrast and avoid a run-on sentence.
The correct option correctly uses the subordinating conjunction 'Although' to establish a logical relationship of contrast between the two clauses. It turns the first clause into a dependent clause, resolving the comma splice and creating a grammatically correct complex sentence.

Step-by-Step Solution

1
Identify the relationship between the two clauses: the idea that parity is always conserved contrasts with the experimental results that disproved this idea.
The clauses must be joined using a subordinating or coordinating conjunction that expresses contrast.
Choosing the correct conjunction ensures that the logical connection between the ideas is clear and grammatically correct.
2
Examine each choice to ensure it joins the independent clauses without creating a comma splice, run-on, or fragment.
The option beginning with 'Although' correctly subordinates the first clause, resolving the comma splice and expressing contrast.
Subordinating one of the clauses prevents a comma splice and structures the sentence as a single, coherent complex sentence.

Key Concept

Subordination and Coordination
Estimated Time:1m 0s
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Topics

Subordination and Coordination

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