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
RBC casts are found in -a) DMb) Wegeners Granulomatosisc) SLEd) Ankylosing spondylitise) Acute glomerulonephritis 
Select and explain. 
A. ab, B. bc, C. acd, D. bce
D: bce
Answer: D: bce 
Explanation: None