5.[Single Choice]A 24-year-old female is presented with low back pain. Physicalexamination reveals kyphosis and low-gradefever.Laboratoryexamination is significant with elevated ESR.Which ofthe...

5.[Single Choice]A 24-year-old female is presented with low back pain. Physical examination reveals kyphosis and low-grade fever.Laboratoryexamination is significant with elevated ESR.Which ofthe following diagnoses is most likely? A.Spinal tumor. B.Ankylosing spondylitis C.Spinal osteoarthritis. D.TB ofthe thoracic vertebrae E.Pyogenic spondylitis.