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': 'Imbibition results in \nSelect and explain. \nA. Shorter cast, B. Larger cast, C. No change in cast dimension, D. Any of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Imbibition leads to expansion of impression material which makes the impression material to occupy the empty space ; resulting in shorter cast.', 'role': 'assistant'}]