A 70-year-old woman with metastatic lung cancer has uncontrolled background pain despite regular oral Morphine. She is now unable to swallow reliably. What is the most appropriate next step in pain management?ASwitch to a transdermal Fentanyl patch at an equivalent doseBStop all opioids and use only NSAIDsCStart regular intramuscular Morphine injectionsDCommence a continuous subcutaneous Morphine infusion via a syringe driverEGive intermittent intravenous Morphine boluses at homeCheck my answer