【单选题】

The nurse is caring for a client who underwent a lumbar laminectomy 2 days ago. Which of the following findings should the nurse consider abnormal

A、More back pain than the first postoperative day.
B、Paresthesia in the dermatomes near the wounds.
C、Urinary retention or incontinence.
D、Temperature of 99.2°F(37.3℃).