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: Pathology
In renal disease, Albumin is first to appear in urine because: 
Select and explain. 
A. Of its high concentration in plasma, B. Has molecular weight slightly greater than the molecules normally getting filtered, C. High Albumin: Globulin ratio, D. Tubular epithelial cells are sensitive to albumin
B: Has molecular weight slightly greater than the molecules normally getting filtered
Answer: B: Has molecular weight slightly greater than the molecules normally getting filtered 
Explanation: . Has molecular weight slightly greater than the molecules normally getting filtered