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
Model analysis indicated for 2 quadrants: 
Select and explain. 
A. Hixon-old father, B. Peck and peck index, C. Pont's index, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: Key Concept:
The question wants to ask about the analysis that can be performed in 2 quadrants i.e. in single arch either maxilla or mandible.  
Examples: 

Hixon - old father (mandibular arch)
Peck and peck index (mandibular arch)
Pont's index (maxillary arch)