The Nurse Administering an IV Piggyback Medication to a Preschool

The nurse administering an IV piggyback medication to a preschool child should

A) Use a "Smart" pump if available.
B) Flush the IV tubing before and after the infusion with normal saline solution.
C) Inject the medication into the IV catheter using the port closest to the child.
D) Inject the medication into the IV tubing in the direction away from the child.