If x^2 = b - ax and x^3(x^3 +c) = d, then which of the following can…

$ c = a^3 - 3ab \, and \, d = b^3$

$ c = -a^3 - 3ab \, and \, d = b^3$

$ c = a^3 + 3ab \, and \, d = b^3$

$ c = a^3 + 3ab \, and \, d = -b^3$