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
Presence of which of the following in the urine is diagnostic of glomerular injury 
Select and explain. 
A. Bright red cells, B. 20% dysmorphic RBC's, C. 100 RBC per high power field, D. Beta 2 micro globulin
B: 20% dysmorphic RBC's
Answer: B: 20% dysmorphic RBC's 
Explanation: None