Motion diagram question

1. The problem statement, all variables and given/known data
The problem is in the attached image


2. Relevant equations



3. The attempt at a solution
I understand that the diagram of A is displaying negative acceleration and the diagram of B is displaying positive acceleration. However, I am struggling to find an answer for the question. I'm also wondering if the diagram of B can be flipped around and still represent the same thing. I am admittedly not the best physics student and any help is appreciated. Thank you.

 

attached image (as i forgot to post it in the previous post)