Is there any control of what options you get when you level up?

[Munch10]

I've got a lvl 12 warrior with 4 attack. I have yet to get Attack as an option when I level up. I thought I'd restart but does anyone know if there is any randomness to what options you get when you level up? Or is it random between character instances but for a given character you'll always get the same options at each level?

Thanks,

Munch10