Your new patient indicates he had a dental instrument break…

Your new patient indicates he had a dental instrument break and become embedded in his oral tissues somewhere around tooth #30.  He would like to know if you can locate it in order to remove it.  Dr. Enzo has asked you to take a dental image of the area to locate the buccal-lingual and anterior-posterior position of the metal fragment.  Which of the following projections would you expose?