You chose: Confront Molly, with others who have observed suspicious behavior, and talk to her about it.
One of the other people with you tells Molly, "We know you have been stealing credit card numbers. She (pointing to you) even saw you in Alex's room when you stole his wallet. You have to give the money back, or we'll go to the police." She reacts with fury. She screams, "You just don't like me, and that's why you are trying to pin this on me!" You are so surprised that you don't know what to say and leave.