Which Kidney Function Test Values Would Be Considered Normal for an Older

Which kidney function test values would be considered normal for an older adult male?

A) BUN 21 mg/dL; creatinine clearance 90 mL/min; eGFR 55 mL/min
B) BUN 15 mg/dL; creatinine clearance 140 mL/min, eGFR 60 mL/min
C) BUN 9 mg/dL; creatinine clearance 120 mL/min; eGFR 100 mL/min
D) BUN 20 mg/dL; creatinine clearance 100 mL/min; eGFR 130 mL/min