Final answer:
The sentence with correct punctuation is option C: Terri was elected student body president by a two-thirds majority.
Step-by-step explanation:
The sentence that has correct punctuation is option C: Terri was elected student body president by a two-thirds majority. The sentence uses capitalization, proper spacing, and punctuation correctly. The comma is used to separate the subject 'Terri' from the rest of the sentence and the period is used to end the sentence.
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