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 short or mild acting stimuli can cause reversible pulpitis: 
Select and explain. 
A. Deep periodontal curettage., B. Incipient caries., C. Enamel fractures., D. All of the above.
D: All of the above.
Answer: D: All of the above. 
Explanation: Mild or short-acting stimuli such as incipient caries cervical erosion, or occlusal attrition; most operative procedures; deep periodontal curettage; and enamel fractures resulting in exposure of dentinal tubules can reversible pulpitis