I want to remove the middle bench, so I have alot more space to create my own "mini conversion" i.e. storage space for table, temporary bed

So, am I right in thinking that what I need to do to is this either A or B:-
A.
1. Remove the back seat bench first?
2. Then remove the middle bench seat?
3. Then put back the back seat bench in original place?
OR B. can I just take out the middle bench seat without touching the back seat?
I'm not sure which, but also if anyone can tell me that there is a fatal flaw in plan generally, pleaaaaaaase let me know.