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
Most common cause of CRF in adults is: 
Select and explain. 
A. Tuberculosis, B. Hypeension, C. Diabetes Mellitus, D. Glomerulonephritis
C: Diabetes Mellitus
Answer: C: Diabetes Mellitus 
Explanation: Answer is C (Diabetes Mellitus): The most common cause of Chronic Renal Failure in adults is Diabetic Nephropathy (most often secondary to Type-2 Diabetes Mellitus)