Option C: porch covers front of house and wraps around to side screened porch, plus adds a mudroom entrance on left/east side of house and makes the bath a full bath
Upstairs, there is now a walk-in closet in the master bedroom
Take the basement with a grain of salt -- the existing bathroom won't be touched (the hallway will be further to the right) and the "exercise room" may very well wind up with a bed in it
There is no window on the top right because of the reworked master bath layout. I'm not a fan of this look, though, so we might have to re-re-work it.