Option A: The civil engineer designed the plans, oversaw the construction and, managed the budget.
Option B: The contractor is responsible for, obtaining the building permits, hiring the workers and, ordering the materials.
Option C: The construction project includes, excavation, foundation, framing, and finishing.
Option D: The building inspector checks the structure, electrical, plumbing, and mechanical systems.
Identify the sentence with correct use of commas.
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Answer: The correct answer is Option D. The sentence uses commas to separate the different items in a list.
Explanation: Option A is incorrect because it incorrectly uses commas before and after the coordinating conjunction “and”. Option B is incorrect because it incorrectly uses commas before and after the prepositional phrase “for” and the coordinating conjunction “and”. Option C is incorrect because it incorrectly uses a comma after the verb “includes”, which should not be separated from its object by a comma.