This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Physiology
All of the following factors are produced by hepatocytes except 
Select and explain. 
A. Fibrinogen, B. Prothrombin, C. Von willebrand factor, D. Factor VIII
C: Von willebrand factor
Answer: C: Von willebrand factor 
Explanation: Von Willebrand factor large-> 20,000 kD multimeric molecule composed of +- 200 kD monomers, synthesized by vascular endothelium, megakaryocytes, and platelets; vWFs hemostatic efficiency is related to multimer size.Ref: Ganong&;s review of medical physiology 23rd edition Page no: 532