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': 'A distal extension partial denture receives its support \nSelect and explain. \nA. From terminal abutments, B. Equally from abutments and the residual ridges, C. Mostly from residual ridge, D. Exclusively from residual ridge', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]