This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Wounds, Tissue Repair & Scars, Subject name: Surgery
[{'content': "Following admission to the emergency department, a 26-year-old woman with severe menorrhagia states that both her father and sister have a bleeding disorder. The hemostatic disorder transmitted by autosomal-dominant mode is which of the following? \nSelect and explain. \nA. Factor X deficiency, B. von Willebrand's disease, C. Factor VIII deficiency (true hemophilia), D. Factor IX deficiency (Christmas disease)", 'role': 'user'}, {'content': 'Answer: B \nExplanation: von Willebrand disease is the most common hemostatic disorder transmitted by autosomal- dominant mode. Other disorders transmitted by this mode are hereditary hemorrhagic telangiectasia and factor XI deficiency. Diseases transmitted by an autosomal-recessive mode are factor X, factor V, factor VII, and factor I deficiencies. Factor VIII (true hemophilia) and factor IX (Christmas disease) deficiencies are sex-liked recessive.', 'role': 'assistant'}]