A nurse is educating a family about bleeding disorders while they await the results of their child's laboratory testing. Which of the following statements accurately describes the differences in the causes of hemophilia A, hemophilia B, and von Willebrand disease? (Select All that Apply.)

A. Hemophilia A is a result of insufficient or absent factor VIII is correct. Hemophilia A is caused by a deficiency or absence of clotting factor VIII, which impairs the ability of blood to clot properly. B. Von Willebrand disease is a disorder that occurs because of excess production of von Willebrand Factor is incorrect. Von Willebrand disease is actually caused by a deficiency or dysfunction of von Willebrand Factor, which is necessary for platelet adhesion and clotting. C. Hemophilia B results from insufficient or absent factor IX is correct. Hemophilia B is caused by a deficiency of clotting factor IX, similar to hemophilia A, but involves a different clotting factor. D. Von Willebrand disease is a disorder that occurs because of absent or insufficient von Willebrand Factor is correct. This disorder involves a deficiency or dysfunction of von Willebrand Factor, which leads to impaired clotting and easy bleeding. E. Hemophilia A is a result of insufficient or absent fibrinogen is incorrect. Hemophilia A is caused by a deficiency of factor VIII, not fibrinogen, which is involved in the final steps of the clotting cascade.