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 has a bifid root? 
Select and explain. 
A. 32, 42, B. 31, 41, C. 34, 44, D. 13, 23
C: 34, 44
Answer: C: 34, 44 
Explanation: None