Which Action by a Patient Indicates That the Home Health

Which action by a patient indicates that the home health nurse's teaching about glargine and regular insulin has been successful?

A) The patient administers the glargine 30 minutes before each meal.
B) The patient's family prefills the syringes with the mix of insulins weekly.
C) The patient draws up the regular insulin and then the glargine in the same syringe.
D) The patient disposes of the open vials of glargine and regular insulin after 4 weeks.