This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Intestinal Infections, Worm Infestations, Subject name: Social & Preventive Medicine
Most common site of Hydatid cyst in human body is:- 
Select and explain. 
A. Spleen, B. Right postero-superior lobe of liver, C. Right antero-inferior lobe of liver, D. Left lobe of liver
B: Right postero-superior lobe of liver
Answer: B: Right postero-superior lobe of liver 
Explanation: Hydatid disease: Caused by infection with a small tapeworm parasite called Echinococcus granulosus. Most common site of hydatid cyst in human body is Right postero-superior lobe of liver. In hydatid disease, 70% of cysts are located in right lobe of liver. Rest are located in lungs, brain, peritoneum, long bones and kidney.