What is the correct punctuation for the sentence: 'What did you see'?

• A. It should end with a period: 'What did you see.'
• B. It should end with a question mark: 'What did you see?'
• C. It should be in quotation marks without punctuation.
• D. It should be capitalized differently.

Answer: (B)

This sentence is a direct question, so the punctuation must show that you’re asking for information. A question mark at the end signals that completion and response are being requested, which is why the correct form is “What did you see?” Using a period would turn it into a statement, changing the function of the sentence. The other options don’t fit because they either treat the sentence as a non-question, or don’t address how punctuation works with questions (and capitalization is already correct as written). If you were quoting the sentence, you’d put the question mark inside the quotation marks.