After the Nurse Has Finished Teaching a Client About Self-Administration

After the nurse has finished teaching a client about self-administration of the prescribed aspart insulin, which of the following client actions indicate good understanding of the teaching?

A) The client avoids injecting the insulin into the upper abdominal area.
B) The client cleans the skin with soap and water before insulin administration.
C) The client places the insulin back in the freezer after administering the prescribed insulin dose.
D) The client pushes the plunger down and immediately removes the syringe from the injection site.