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': 'Hyalinisation of the periodontal Ligament, due to excessive orthodontic forces results in \nSelect and explain. \nA. Frontal resorption, B. Undermining resorption, C. Cementum remaining intact, D. Dentine remaining intact', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]