Final answer:
The most appropriate statement by the instructor in this situation would be: C) You are expected to practice like a licensed nurse.
Step-by-step explanation:
The most appropriate statement by the instructor in this situation would be: C) You are expected to practice like a licensed nurse. Although it is a mistake to administer medication to the wrong client, the instructor should remind the student nurse that they are expected to practice according to the standards of a licensed nurse. This emphasizes the importance of learning from the mistake and taking responsibility for their actions.