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
Rapid-speed autoclaves 
Select and explain. 
A. require at least 30 minutes for sterilization., B. require no antirust prctreatment., C. destroy cloth products., D. produce verifiable sterilization.
D: produce verifiable sterilization.
Answer: D: produce verifiable sterilization. 
Explanation: None