Final answer:
The correct punctuation for the appositive or appositive phrase is option D: The classic, Tom Sawyer was written by Mark Twain in 1876.
Step-by-step explanation:
The correctly punctuated sentence for the appositive or appositive phrase is option D: The classic, Tom Sawyer was written by Mark Twain in 1876. In this sentence, the appositive phrase 'Tom Sawyer' is correctly punctuated with commas. Commas are used to set off non-essential information or phrases like appositives. In this case, the appositive phrase 'Tom Sawyer' provides additional information about the noun 'classic'.
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