Answer: a. Reinforcement
Step-by-step explanation:
Reinforcement is a method of correcting behavior by either positive methods or negative. Positive methods involve using a reward and negative involves using punishment.
This falls under negative reinforcement as it is a punishment. Molly was punished by her supervisor by her being reprimanded and the incident being put on her file. It led to her being more conscious of the event in future which meant that the reinforcement corrected her behavior.