A 68-year-old woman with knee osteoarthritis has pain limiting walking but no night pain. BMI is 30 kg/m². She takes intermittent acetaminophen with partial relief. According to Canadian OA guidance, what should be the next step in management?AStart long-term opioidsBRefer immediately for total knee replacementCRecommend exercise therapy, weight reduction and trial of topical and/or oral NSAIDs if no contraindicationDOrder MRI of the kneeEStart systemic corticosteroidsCheck my answer