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
Dentin bonding agents usually contain 
Select and explain. 
A. Only hydrophobic component, B. Only hydrophilic component, C. Hydrophobic and hydrophilic component, D. lyophilic and lyophobic component
C: Hydrophobic and hydrophilic component
Answer: C: Hydrophobic and hydrophilic component 
Explanation: None