For (B) not if we took genes from non-mammals.
Octopi are already the pinnacle of non-mammalian intelligence, so far as I know. What else would you bring in?
Tool-using birds are smart enough that there might be useful stuff there. How you do anything useful with that and an octopus is beyond me, but no more so than doing something useful with mammal genes and an octopus.
For (B) not if we took genes from non-mammals.
Octopi are already the pinnacle of non-mammalian intelligence, so far as I know. What else would you bring in?
Tool-using birds are smart enough that there might be useful stuff there. How you do anything useful with that and an octopus is beyond me, but no more so than doing something useful with mammal genes and an octopus.