Which one of the following is given by the passage as a reason for the difficulty a lawyer would have in determining ...

Hello, I saw a discussion already started for this question but the response does not seem to explain what was asked. From my understanding 2 C would be SC--> Not MR Why was SC negated in the video example? The diagram does not show this. It also does not mention LCF so why was that diagrammed in C as well? Thanks