A 40-year-old man presents with low back pain for 4 weeks after lifting at work. It is non-radiating, with no neurological deficits, fever, weight loss, or history of cancer. According to Choosing Wisely Canada, what is the best imaging strategy?AImmediate lumbar spine MRI to rule out disc herniationBLumbar spine CT scan to exclude fractureCNo imaging at this time; provide conservative management and review if red flags developDImmediate lumbar spine X-ray to reassure the patientEWhole-body bone scan to exclude metastasesCheck my answer