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
The following material with a hemostatic effect can be used as a substitute for Formocresol Pulpotomy 
Select and explain. 
A. Gluteraldehyde, B. Ferric sulphate, C. Mineral Trioxide Aggregate (MT), D. Freeze-dried bone
B: Ferric sulphate
Answer: B: Ferric sulphate 
Explanation: None