A 60-year-old man with known metastatic pancreatic cancer is admitted with severe abdominal pain despite regular oral Morphine. He is now unable to swallow safely. What is the most appropriate next step for pain control?AStop opioids and switch to NSAIDs onlyBStart a continuous subcutaneous Morphine (or Diamorphine) infusion via syringe driverCGive intermittent intramuscular Morphine injectionsDStart Fentanyl transdermal patch without prior opioid exposureESedate him with Benzodiazepines instead of analgesiaCheck my answer