Divide x4−4x2+3x^4 - 4x^2 + 3x4−4x2+3 by (x2−1)(x^2 - 1)(x2−1). What is the quotient?
x2−3x^2 - 3x2−3
x2+3x^2 + 3x2+3
x2−4x^2 - 4x2−4
x2+1x^2 + 1x2+1