It is the use of C. a flashback. A flashback refers to a scene that happened before in the timeline. So if you are writing something in a chronological manner, it means that you are going to write it in the order that the events happened. If you suddenly introduce a flashback, you are going to break the flow of chronological events.
Its A.I<span>t suggests that Jessica may have been careless because she was trying to work fast. I did a test and got this answer right! Hope I helped...</span>