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
Indirect pulp capping procedures on primary molars are
indicated when: 
Select and explain. 
A. Removal of decay has exposed the pulp, B. A tooth has a Larger long-standing lesion with a history of continuous pain, C. The carious lesion has just penetrated the dentinoenamel junction, D. The carious lesion is suspected of producing an exposure of the pulp
D: The carious lesion is suspected of producing an exposure of the pulp
Answer: D: The carious lesion is suspected of producing an exposure of the pulp 
Explanation: None