![](https://lstatic.shangxueba.com/jiandati/pc/images/pc_jdt_tittleico.png)
the graph below illustrates the relationship between the plasma concentration of a substan
The graph below illustrates the relationship between the plasma concentration of a substance X and its reabsorption by the kidney. The GFR is 100 ml/min. The renal threshold for this substance is
A、200 mg/dl
B、50 mg/dl
C、100 mg/dl
D、150 mg/dl
E、500 mg/dl
![](https://lstatic.shangxueba.com/jiandati/pc/images/jdt_panel_vip.png)
![](https://lstatic.shangxueba.com/jiandati/pc/images/no_answer.png)