If a Nurse Administers a Liquid Medication Via the Oral

If a nurse administers a liquid medication via the oral route and then realizes it was ordered to be administered via the parenteral route, the nurse should

A) Report it as a medication error.
B) Take no special action because a liquid medication can be administered either way.
C) Log it on the patient's chart but inform the physician of the change in administration.
D) Give another dose via the parenteral route because the incorrectly administered dose will be ineffective.