What is the purpose of end punctuation in a sentence?

• A. End punctuation indicates the end of a thought.
• B. End punctuation shows subject-verb agreement.
• C. End punctuation indicates sentence length.
• D. End punctuation marks the start of a new sentence.

Answer: (A)

End punctuation serves to signal the end of a complete thought and guide how we read a sentence. A period, question mark, or exclamation mark shows that the sentence has finished and hints at the tone—statement, question, or emphasis. This is different from subject-verb agreement, which is about making the verb form agree with the subject and not about where a sentence ends. It also isn’t about sentence length; you can have short or long sentences with any amount of punctuation. And the start of a new sentence happens after the end punctuation and a space, not because punctuation alone marks the beginning. For example: We walked to the park. Did you see the birds? Watch out!