Peter Was Frustrated with His Employee, Carol

Peter was frustrated with his employee, Carol. It was very important that when the door to the store opened each day, that Carol was at her cash register, ready to help customers and to take payment for the products found in the convenience store. He had made it very clear to her when he hired her that she needed to arrive at 5:45 am each day, so that she had 15 minutes to prepare the cash register and be ready to serve customers when the store opened at 6:00 am. For her entire probationary period, Carol came on time at 5:45 am. But in the last week alone, Carol had been almost 30 minutes late on Monday and Wednesday mornings. He also noticed that she spent time texting on her cell phone during slower periods this week as well. When he spoke to her about his concerns, she assured him that it wouldn't happen again. Now, on Friday, Peter looked at the clock again to confirm that it was now 6:20, with still no sign of Carol. He knew that he was going to "let her have it" when she finally came in today.
-When Peter spoke to Carol about his concerns related to her late arrivals and texting at work during the week,this would be called

A) corrective discipline
B) progression discipline
C) preventive discipline
D) negative discipline
E) advisory discipline