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
Hinge axis is located with the help of: 
Select and explain. 
A. Ear rods, B. Maxillomandibular vertical relations, C. Kinematic facebow, D. Orbital pointer
C: Kinematic facebow
Answer: C: Kinematic facebow 
Explanation: True hinge axis is located with a kinematic facebow and arbitrarily by an arbitrary type facebow (ear piece/facia type).