This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'Absence of dynein \nSelect and explain. \nA. Immotile cilia syndrome, B. Rabies, C. Both, D. None', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Absence of dynein causes immotile cilia syndrome, it leads to various complications in respiratory system like:bronchiectasis, sinusitis, situs inveus Ref:Guyton and Hall textbook of medical physiology 12th edition ,pag number, :8,9,14', 'role': 'assistant'}]