Choose the sentence that is punctuated correctly.
1) The only guests, who have not sent RSVP's are Ms. Mendoza, Mrs. Gold, and Mr. Sims.
2) The only guests who have not sent R.S.V.P.'s are Ms. Mendoza, Mrs. Gold, and Mr. Sims.
3) The only guests who have not sent RSVPs are Ms. Mendoza, Mrs. Gold, and Mr. Sims.