Read the following sentences.
Have you gotten a chance to read my rough draft yet? I was just wondering—
Which of these correctly edits the sentences to reflect a thought that trails off?
Have you gotten a chance to read my rough draft yet . . . I was just wondering.
Have you gotten a chance to read my rough draft yet? I was just wondering . . .
Have you gotten a chance to read my rough draft yet—I was just wondering.
Have you gotten a chance . . . to read my rough draft yet? I was just wondering.