A 52-year-old man with chronic low back pain for 3 weeks and no red flags requests an MRI because his friend had one. Examination is normal with no neurological deficit. According to Choosing Wisely Canada, what is the most appropriate response?AOrder lumbar MRI to reassure the patientBOrder lumbar x-ray insteadCExplain that imaging is not indicated without red flags and focus on conservative managementDRefer urgently to neurosurgery for assessmentEPrescribe bed rest for 2 weeksCheck my answer