Use synthetic division to perform (x^4 - 3x^2 + 5) ÷ (x - 4).
a) x^3 - 4x^2 - 16x + 61
b) x^3 + 4x^2 - 16x + 61
c) x^3 + 4x^2 - 16x - 61
d) x^3 - 4x^2 + 16x - 61