Nurse Janina Observes a Dazed and Apparently Confused Co-Worker Taking

Nurse Janina observes a dazed and apparently confused co-worker taking two diazepam tablets by mouth, as the co-worker is about to pour medications. What should Nurse Janina do?

A) Call the nurse supervisor immediately before the co-worker pours and administers the medications
B) Pour the medications for the co-worker while she goes for a cup of coffee
C) Report the co-worker to hospital security because she may be addicted to drugs
D) Watch the co-worker closely and report the incident to the nurse supervisor at the end of the day