A poll again, concerning the 43S (again)

[Bit]

I voted B as that seemed the best choice out of the presented options but for the record I'm not at all convinced that the arithmetic operators should be on the left side. I don't think it's a bad choice when viewed in isolation but I'm concerned that it may be difficult to get used to and confusing if you switch back and forth between the 43S and another calculator, most of which have arithmetic operators on the right (including the 34S).