A 17-year-old male adolescent presents with unexplained neurological symptoms. His liver is enlarged on palpation and he has other symptoms of hepatitis. Blood work reveals depressed ceruloplasmin levels. An ophthalmological examination reveals Kayser-Fleischer rings. The most likely diagnosis is Wilson's disease. What abnormality is the primary cause of the disease?
A) Copper metabolism
B) Selenium deficiency
C) Glycolipid metabolism
D) Glycogen storage
E) Collagen biosynthesis
