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
Ca(OH)2 is given 
Select and explain. 
A. In weeping canal, B. When there is bleeding from root canals, C. As a sterilizing agent, D. To remove or dissolve Periapical debris
A: In weeping canal
Answer: A: In weeping canal 
Explanation: None