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
Number connection test is used in 
Select and explain. 
A. Alzheimer's disease, B. Parkinson's disease, C. Hepatic encephalopathy, D. Global aphasia
C: Hepatic encephalopathy
Answer: C: Hepatic encephalopathy 
Explanation: Number connection test or constructional apraxia are a clinical features of hepatic encephalopathy.