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
Using occlusal morphology as guide, the Mandibular third molar is most similar to: 
Select and explain. 
A. Maxillary permanent first molar, B. Mandibular permanent first molar, C. Mandibular permanent second molar, D. Mandibular deciduous second molar
C: Mandibular permanent second molar
Answer: C: Mandibular permanent second molar 
Explanation: None