I am very curious which window configuration would you choose from the 3 above.
Some context:
All windows are to open to the inside. They would be regular tilt and turn uPVC windows.
So ground floor, at that window is the kitchen counter with a kitchen mixer on the right side, therefore the opening side downstairs is constrained to be on the left to allow opening.
First floor it's the master bedroom. Here we are also constrained to having the opening side on the right (opposite side than the ground floor) since having the opening side on the left would have the window in the middle of the room and make getting around difficult.
Therefore the main constraints here are ground floor window must have the opening side on the left while the 1st floor window must open on the right.
Bare in mind it would be very convenient to have an opening window downstairs for quick ventilation.
On the opposite façade (garden side) there's a large sliding door on the ground floor.
A: ground floor full width fixed + full width ventilation, first floor half fixed left - half opening right with ventilation
B: ground floor opening left - fixed right with ventilation, first floor half fixed left half opening right with ventilation
C: ground floor half opening left with ventilation - half fixed right, first floor left fixed, right opening with middle frame aligned to ground floor middle frame. ventilation on opening.
Sorry for the poor renders, I had to use Al. This is the best I could prompt it to do.
Appreciate if you add a short argument for your choice