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: Pathology
Loss of tooth surface because of chemomechanical action is known as: 
Select and explain. 
A. Abrasion, B. Erosion, C. Abfraction, D. Attrition
B: Erosion
Answer: B: Erosion 
Explanation: Dental erosion is defined as irreversible loss of dental hard tissue by a chemical process that does not involve bacteria.