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
Which is the WRONG way to apply dam using a wingless clamp? 
Select and explain. 
A. Put the clamp on the tooth, B. Place the dam on the tooth with fingers, and then position the clamp over it, C. Attach the dam over the clamp and frame outside the mouth, then put the assembly over the tooth using clamp holders OVER the dam., D. Attach the dam over the clamp and frame outside the mouth, and then put the assembly over the tooth using clamp holders UNDER the dam.
C: Attach the dam over the clamp and frame outside the mouth, then put the assembly over the tooth using clamp holders OVER the dam.
Answer: C: Attach the dam over the clamp and frame outside the mouth, then put the assembly over the tooth using clamp holders OVER the dam. 
Explanation: None