Oh dear, I couldn't vote....
::tries searching for the most theologically sound and logical explanation::
IMHO, If only Adam and Eve sinned, I think they would still all have to leave the Garden. Sin was in the world, and if Adam and Eve had more children, those children would probably hate their 'perfect' sibling[s] so it's quite likely, somewhere down the line, there would be war. But then again, ::still thinking:: how could they stay in the Garden, because suffering (I don't think...) couldn't exist there, and I'm sure that the kids would be pretty upset that their parents had to leave. This is all my opinion and is by no means necessarily true. But this is a really interesting question.
