Please Read the Clinical Scenario, and Then Answer the Question

Please read the clinical scenario, and then answer the question that follow to become familiar with the traditional NCLEX question format.
Jennifer is a 13-year-old girl with cerebral palsy, who came to your children’s hospital for a posterior spinal fusion, where her spine was straightened with rods that were surgically implanted. She tolerated the procedure well, but now 24 hours after the lengthy operation, her blood pressure is 70/25, with a heart rate of 150, fever of 104 degrees, and breathing deeply and rapidly. Whereas several hours ago her vital signs were stable and she was talking to you, she now seems to show no interest in interacting with anybody. Of note, her incision site down her back is swollen, red, and oozing a cloudy white substance. You call the attending physician, who rushes to the bedside.
-Your suspicions are confirmed a few days later,with S.aureus being the primary organism responsible for Jennifer's septicemia.Although empiric antibiotic therapy was initiated,what is the next step?

A) continue initial empiric therapy,as cessation could encourage resistance
B) narrow antibiotic coverage as indicated
C) cease antibiotics,3 days of treatment is the standard
D) continue empiric coverage,as other organisms may have gone undetected