I can't speak from direct personal experience, so take this with a grain of salt.
If done nicely, I don't think option A would affect the resale value and probably not the durability of things. The only possible durability concern I can see is with the threshold between the two coming loose, but I must say I haven't seen that generally happen in practice.
I do know that I never even would think when buying a used RV to enquire whether the flooring is of a different configuration than when new. I'd just look at it and see if it made sense and looked presentable. I might prefer to have carpet in the bedroom, but that's just me and my feet on chilly mornings talking.