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': 'Which of the following statement is not true about Von willebrand disease? \nSelect and explain. \nA. VWF is synthesized by endothelial cells and megakonjocytes, B. VWF maybe located in the plasma and subendothelial tissue, C. VWF causes platelet adhesion and prevents degradation of factor VIII in plasma, D. Deficiency of VWF causes prolonged prothrombin time', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Laboratory findings of Von willebrand disease\n\nPlatelet count : Normal\xa0\nBleeding time : Prolonged\nClotting time : Prolonged\nProthrombin time : Normal', 'role': 'assistant'}]