This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fluid and electrolytes, Subject name: Medicine
Normal anionic gap is seen in one of thefollowing- 
Select and explain. 
A. Diarrhoea, B. Uremia, C. Lactic acidosis, D. Ketosis
A: Diarrhoea
Answer: A: Diarrhoea 
Explanation: Eg for normal anion gap : diarrhea, pancreatic fistula, antacid drugs, Renal tubular acidosis, Renal failure, Ref: Harrison&;s 19thE