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: Medicine
All of the following statements about. Wilson's disease are true, EXCEPT - 
Select and explain. 
A. It is an autosomal recessive disorder, B. Serum Ceruloplasmin level is <20 mg/dI, C. urinary copper exxretion is <100 mg/day, D. Zinc acetate is effective as maintenance therapy
C: urinary copper exxretion is <100 mg/day
Answer: C: urinary copper exxretion is <100 mg/day 
Explanation: None