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: Physiology
GFR is increased when - 
Select and explain. 
A. Plasma oncotic pressure is increased, B. Glomerular hydrostatic pressure is decreased, C. Tubular hydrostatic pressure is increased, D. increased renal blood blow
D: increased renal blood blow
Answer: D: increased renal blood blow 
Explanation: D i.e., Increased renal blood flow