The sentence that's correctly punctuated will be C. The voice repeated, "Please, send the reply to P. O. Box 1776, Washington, D.C., as requested."
It should be noted that punctuation simply means the use for commas, full stop, etc to pause words.
In this case, the sentence that's correctly punctuated will be that the voice repeated, "Please, send the reply to P. O. Box 1776, Washington, D.C., as requested."
In conclusion, the correct option is C.
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