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: Medicine
High anion gap metabolic acidosis is/are present in: 
Select and explain. 
A. Asthma, B. COPD with CO2 retention, C. Poorly controlled diabetes, D. Renal tubular acidosis
C: Poorly controlled diabetes
Answer: C: Poorly controlled diabetes 
Explanation: Answer- C. Poorly controlled diabetesKetoacidosisDiabeticAlcoholicStarvation