1Which revision best combines these two sentences using a subordinating conjunction: "The bridge was old. Engineers decided to replace it"?
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Answer: Because the bridge was old, engineers decided to replace it.
Using "because" as a subordinating conjunction correctly and clearly combines the cause-and-effect relationship between the two ideas, unlike the comma splice, redundancy, or faulty punctuation in the other options.
Using "because" as a subordinating conjunction correctly and clearly combines the cause-and-effect relationship between the two ideas, unlike the comma splice, redundancy, or faulty punctuation in the other options.