How Will the Nurse Assess for Flank Tenderness in a Patient

How will the nurse assess for flank tenderness in a patient with suspected pyelonephritis?

A) Palpate along both sides of the lumbar vertebral column.
B) Strike a flat hand covering the costovertebral angle (CVA) .
C) Push fingers upward into the two lowest intercostal spaces.
D) Percuss between the iliac crest and ribs at the midaxillary line.