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Difficulty: HardSubordination and Coordination

Because early wax cylinders are extremely fragile, playing them with a traditional stylus can permanently destroy the sound grooves. Instead, modern archivists use non-contact optical scanning to retrieve the audio; because this method preserves the recordings without physical contact.

Which choice most effectively and grammatically completes the underlined portion of the sentence?

  1. A
    Instead, modern archivists use non-contact optical scanning to retrieve the audio; because this method
  2. Instead, modern archivists use non-contact optical scanning to retrieve the audio, since this methodAnswer
  3. C
    Instead, modern archivists use non-contact optical scanning to retrieve the audio, this method
  4. D
    Instead, modern archivists use non-contact optical scanning to retrieve the audio. Because this method

Answer

Instead, modern archivists use non-contact optical scanning to retrieve the audio, since this method
The correct option correctly uses the subordinating conjunction 'since' to introduce a dependent clause that provides the reason for the main action. The comma correctly separates the main clause from the dependent clause, maintaining proper grammatical flow and sentence structure.

Step-by-Step Solution

1
Analyze the grammatical structure and relationship between the clauses in the sentence.
The sentence contains two main ideas: archivists use optical scanning (an independent clause) and this method preserves the recordings (a reason or explanation that should be subordinate).
Understanding clause hierarchy helps identify whether coordination or subordination is required.
2
Evaluate the punctuation and conjunctions connecting the clauses in the options.
The option containing 'since this method' properly connects the independent clause with a subordinate clause explaining why scanning is used, avoiding run-ons, comma splices, or fragments.
A subordinating conjunction like 'since' or 'because' is required to make the second clause dependent, and it must be correctly linked to the main clause without isolating it as a fragment.

Key Concept

Subordination and Coordination
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Topics

Subordination and Coordination

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