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
Which is Not true regarding gastric outlet obstruction 
Select and explain. 
A. Hypokalemia, B. Hypochloremia, C. Alkaline urine, D. Metabolic alkalosis
C: Alkaline urine
Answer: C: Alkaline urine 
Explanation: Ans is 'c' ie Alkaline urine