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
Type I and type II zinc oxide impression paste
differ with respect to 
Select and explain. 
A. Their use, B. Their hardness after setting, C. Water content, D. Eugenol content
B: Their hardness after setting
Answer: B: Their hardness after setting 
Explanation: None