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
Laser pulpotomy uses: 
Select and explain. 
A. Nd:YAG laser, B. Er:YAG laser., C. Co2, D. Cr:YSGG
A: Nd:YAG laser
Answer: A: Nd:YAG laser 
Explanation: Nd: YAG laser has 100% success rate.