This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Dental
In recording the border movement in the vertical plane, name the tracing produced by it: 
Select and explain. 
A. Diamond tracing, B. Beak tracing, C. Shield tracing, D. None
C: Shield tracing
Answer: C: Shield tracing 
Explanation: Border movement is the mandibular movement at the limits dictated by anatomic structures as viewed in a given plane.
Border movement recorded in: 
• Horizontal plane produces characteristic 'diamond tracing'.
• Sagittal plane produces 'Beak tracing.
• Vertical plane produces 'Shield tracing'
• Combination of border movements in all three planes produces 'Envelop' of motion.