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 of the following are indications for using an anteroposterior strap type of major connector? 
Select and explain. 
A. Class I and II arches with excellent abutment support, B. Long edentulous spans in class III, C. Inoperable palatal torus that does not extend posteriorly to the junction of the hard and soft palate, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: None