This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Medicine
Which one of the following is least expected to precipitate hepatic encephalopathy in a liver cirrhosis patient? 
Select and explain. 
A. Peritoneal tap, B. Antibodies treatment, C. Variceal bleed, D. Hypokalemia
A: Peritoneal tap
Answer: A: Peritoneal tap 
Explanation: Encephalopathy precipitating events:HypokalemiaInfectionIncreased dietary protein load Electrolyte disturbancesRef: Harrison's; 18/e; p2601