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
Placing a ring liner approximately 3.25 mm short of the ends of the ring tends to 
Select and explain. 
A. Produce a more uniform expansion and the expansion will not be in a vertical direction hence no distortion, B. Produce a more uniform contraction, C. Produce no change, D. Produce distortion
A: Produce a more uniform expansion and the expansion will not be in a vertical direction hence no distortion
Answer: A: Produce a more uniform expansion and the expansion will not be in a vertical direction hence no distortion 
Explanation: None