A patient is recovering from a common bile duct exploration and has a T-tube drain in place. As the nurse, which action is most appropriate to ensure proper function and patient safety?

B Clamp the T-tube for 12 hours each day to reduce bile flow C Secure the T-tube to the patient's gown to prevent accidental dislodgement. D Maintain the drainage bag below the level of the abdomen to promote gravity drainage. A Flush the T-tube with sterile water every 6 hours to maintain patency.