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: Pathology
[{'content': 'ABO blood groups inheritance is an example of - \nSelect and explain. \nA. Mitochondrial inheritance, B. Allelic exclusion, C. Sex-linked inheritance, D. Co-dominance', 'role': 'user'}, {'content': 'Answer: D \nExplanation: . Co-dominance', 'role': 'assistant'}]