According to the Basic Principles of the Paralleling Technique, the Film

Multiple Choice

According to the basic principles of the paralleling technique, the film is placed in the mouth ____ to the long axis of the tooth being radiographed, and the central ray of the x-ray beam is directed ____ to the film and long axis of the tooth.

A) Parallel; perpendicular
B) Parallel; parallel
C) Perpendicular; parallel
D) Perpendicular; perpendicular