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
[{'content': 'Wax pattern is ideally invested immediately to decrease the dimensional changes caused by: \nSelect and explain. \nA. Decrease flow, B. Continuous expansion, C. Relaxation of the internal stresses, D. Water loss', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]