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
Class II elastics are used by stretching an elastic between which of the two following points? 
Select and explain. 
A. From the posterior to the anterior within the maxillary arch, B. From the posterior to the anterior within the mandibular arch, C. From the posterior of the maxillary arch to the anterior of the mandibular arch, D. From the posterior of the mandibular arch to the anterior of the maxillary arch
D: From the posterior of the mandibular arch to the anterior of the maxillary arch
Answer: D: From the posterior of the mandibular arch to the anterior of the maxillary arch 
Explanation: Class II elastics work in the direction that would be used to correct a Class II malocclusion, to pull the mandibular teeth forward and the maxillary teeth distally.