Final answer:
The sentence that contains the correct punctuation is: O I was late because my alarm didn't go off; I was up late last night; it was dark outside...
Step-by-step explanation:
The sentence that contains the correct punctuation is:
O I was late because my alarm didn't go off; I was up late last night; it was dark outside...
This sentence correctly uses semi-colons to separate the clauses and ellipsis to indicate that the sentence continues. The punctuation creates a clear and organized structure, improving readability.
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