Would It Be Sufficient to Just Replace the Neurons in Someone

Would it be sufficient to just replace the neurons in someone who suffered nervous tissue damage? Why or why not?

A) No,replacement neurons must also make the correct connections with cells in their surroundings.
B) Yes,replacement neurons will make the correct connections with cells in their surroundings.
C) No,replacement neurons will reject the remaining endogenous neurons.
D) Yes,replacement neurons will co-exist with remaining endogenous neurons and make all other cells.
E) Yes,replacement neurons convert into stem cells when transplanted and repair damaged tissue.