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
Hysteresis in a hydrocolloid gel is 
Select and explain. 
A. Moisture absorption, B. Temperature lag between gelation and liquefaction temperature, C. Phenomenon of conversion of gel into sol, D. All the above
B: Temperature lag between gelation and liquefaction temperature
Answer: B: Temperature lag between gelation and liquefaction temperature 
Explanation: None