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: Surgery
What is the reason for following set of symptoms after prostatic Sx-restlessness, vomiting and change in sensorium - 
Select and explain. 
A. Electrolyte imbalance, B. Bladder neck obstruction, C. Acute pyelonephritis, D. Ureter stenosis
A: Electrolyte imbalance
Answer: A: Electrolyte imbalance 
Explanation: None