A 68-year-old man with metastatic lung cancer has increasing background pain despite regular Paracetamol. He is opioid-naïve. What is the most appropriate next step in analgesia?AStart regular immediate-release oral Morphine at a low dose with additional doses for breakthrough pain, titrating according to responseBStart transdermal fentanyl patches at a high doseCPrescribe non-steroidal anti-inflammatory drugs onlyDAvoid opioids as they always shorten life significantlyEAdmit immediately for epidural analgesiaCheck my answer