A 67-year-old man with knee osteoarthritis and BMI 31 kg/m² complains of chronic pain limiting walking. He currently uses acetaminophen intermittently. According to osteoarthritis management principles, what is the most appropriate next step?AEncourage weight loss and exercise therapy, and consider topical NSAIDsBStart chronic opioid therapyCOrder MRI of the knee before any treatmentDRecommend complete rest to avoid joint damageEStart systemic corticosteroidsCheck my answer