<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 36-year-old man presents to his physician with the complaint of bilateral lower back pain. The pain is 510, constant, aching, aggravated by bending forward and lying supine, and is alleviated by resting in a neutral position. The pain appeared 3 days ago after the patient overstrained at the gym. He does not report changes in sensation or limb weakness. The patient works as a business analyst. The patients weight is 88 kg 194 lb, and the height is 186 cm 6 ft 1 in. The vital signs are within normal limits. The neurological examination shows equally normal lower limb reflexes, and preserved muscle tone and power. The paravertebral palpation of the lumbar region increases the pain. Which of the following non-pharmacological interventions is the most appropriate in the presented case?? A: Bed rest for 3 days, B: Manual traction, C: Maintaining usual activity as tolerated, D: Therapeutic ultrasonography, E: Electromyographic biofeedback,  <response>: This is a clinical vignette describing a 36-year-old man with acute low back pain after overstraining at the gym. The pain is constant, aching, aggravated by certain positions and relieved by resting. There are no neurological deficits on exam. The question asks to identify the most appropriate non-pharmacological intervention for this patient.Choice A of bed rest is not recommended for acute low back pain as it can delay recovery. Choice B of manual traction has limited evidence for acute low back pain. Choice D of ultrasonography also has limited evidence. Choice E of EMG biofeedback is not commonly used for this presentation. Choice C of maintaining usual activity as tolerated is consistent with guidelines for managing acute low back pain without neurological deficits. Early return to normal activity, within the limits of pain, is associated with better outcomes compared to bed rest.C: Maintaining usual activity as tolerated 