This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Systemic histology, Subject name: Anatomy
Functional unit of Liver is 
Select and explain. 
A. Hepatocytes, B. Poal Tracts, C. Liver Acinus, D. Hepatic Lobule
C: Liver Acinus
Answer: C: Liver Acinus 
Explanation: Anatomical unit of liver - Hepatic Lobule Functional unit of liver- Liver Acinus