Final answer:
The correct sentence with pronoun agreement is provided.
Explanation:
The sentence that contains NO ERRORS in pronoun agreement is:
- Citizens south of the Mason-Dixon Line who aided the Underground Railroad put themselves in danger of prosecution.
In this sentence, 'Citizens' is a plural noun, and the pronoun 'themselves' correctly agrees with the plural noun, maintaining pronoun agreement.
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- Pronoun Agreement
- English Grammar
- Subject-Verb Agreement
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