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
Minor connector for the mandibular distal extension base should extend: 
Select and explain. 
A. Half the length of edentulous ridge, B. Two thirds the Length of edentulous ridge, C. Full length of edentulous ridge, D. None of the above
B: Two thirds the Length of edentulous ridge
Answer: B: Two thirds the Length of edentulous ridge 
Explanation: None