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
A 12 years old girl with tremors and emotional liability has golden brown discolouration in Descement's membrane. The most likely diagnosis is? 
Select and explain. 
A. Fabry's disease, B. Wilson's disease, C. Glycogen storage disease, D. Acute Rheumatic fever
B: Wilson's disease
Answer: B: Wilson's disease 
Explanation: Answer is B (Wilson's Disease): Psychiatric manifestations in the form of emotional lability along with neurological manifestations in the form of tremors and the characteristic 'Kayser Fleisher Rings' (golden brown discolouration of descemet's membrane) are diagnostic of Wilsons disease.