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
Certain oral conditions may preclude the use of the rubber dam; these conditions include: 
Select and explain. 
A. Teeth that have not erupted sufficiently to support a retainer, B. Some third molars, C. Extremely malpositioned teeth, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: Certain oral conditions may preclude the use of the​ rubber dam; these conditions include:

Teeth that have​ not erupted sufficiently to support a retainer.
Some​ third molars.
Extremely malpositioned teeth.

In​ addition, patients suffering from asthma may not tolerate the rubber dam if breathing through the nose is​ difficult.
Sturdevants operative dentistry 4th edition page 446