A Physician Orders Total Parenteral Nutrition for a Critically Ill

A physician orders total parenteral nutrition for a critically ill client. Which medication/supplement may be safely added to the client's total parenteral solution?

A) Regular insulin, heparin, and H₂ inhibitors
B) Iron, vitamin K, and cimetidine
C) Iron, heparin, and neutral protamine Hagedorn (NPH) insulin
D) Regular insulin, vitamin K, and H₂ inhibitors