The Nurse Records a Patient's Intake and Output for an 8-Hour

The nurse records a patient's intake and output for an 8-hour period and notes nasogastric (NG) tube irrigation with 50 mL of normal saline solution every 4 hours and lactulose syrup, 30 mL, instilled through the NG tube with 30 mL of normal saline solution.Which total should the nurse record as the patient's intake over 8 hours?

A) 30 mL
B) 160 mL
C) 110 mL
D) 210 mL