The creatinine clearance (mL/min) is equal to:
A. urinary creatinine (mg/L)/[volume of urine (mL/min) x plasma creatinine (mg/mL)]
B. [urinary creatinine (mg/mL) x volume (mL/min) x plasma creatinine (mg/mL)]
C. (urinary creatinine (mg/L))/[volume (mL/hour) x plasma creatinine (mg/L)]
D. [urinary creatinine (mg/L) x volume (mL/hour)] / plasma creatinine (mg/mL)