Mrs. Knosy is a high school teacher who likes to stay informed about how  her students are doing, both academically and socially. She usually does this by spending time in the hallway talking to her students. She was walking down the hallway over lunch one day and overheard a conversation between two of her students. Based on this conversation, she had good reason to believe one of the students, Sally, was in possession of illegal contraband, stored in her locker. At the end of classes that day, Sally's sister came to Mrs. Knosy and told her that she was worried about her sister who had taken some of her father's prescription medication to school. It crossed Mrs. Knosy's mind that the prescriptions were probably still in Sally's locker. What should Mrs. Knosy do? 

Document/record all of her suspicions and discussions (date, times, incidents, conversations, etc.)

Inform police to have them initiate a search

Share her documented findings with her school's administration

All of the above