Which of the Following Actions Is Appropriate to Prevent a Clogged

Which of the following actions is appropriate to prevent a clogged feeding tube?

A) instill heparin into the tubing
B) slow the feeding to run at ½ the normal rate for one hour a day
C) use a small volume syringe and add air into the tube
D) flush the tube with 25 mL of tap water several times a day
E) reinsert the stylet that was used during tube placement