Which of These Assessments of a Patient Who Is 1

Which of these assessments of a patient who is 1 day post surgery to repair a hip fracture requires immediate nursing intervention?

A) Patient ate 30% of clear liquid breakfast.
B) Oral temperature is 99.2° Fahrenheit.
C) Patient states, "Boy, I did not realize I would be so tired after this surgery."
D) Patient reports severe pain 30 minutes after receiving pain medication.