Quotation marks are used to indicate material that is being reproduced word for word. According to general rule, commas and periods that are part of the original sentence go inside the quotation marks, even though they are not part of the original quotation. Thus, the correct answer should be Option D, no change.
Option A is incorrect because the speech is not enclosed within quotation marks.
Option B is incorrect because quotation marks end when the direct speech ends and restart when the direct speech begins.
Option C does not contain all the punctuations required in a quoted text.