Compute the derivative of the function

$f(x)=\frac{(x^2-x{)}^3(3x1)}{x^{4}2x^2-1}$

Select one:

a $\frac{(x^{4}2x^2-1)|3(x^3-x{)}^2(2x-1)(3x1)3(x^3-x{)}^3|-(x^3-x{)}^3(3x1)(4x^{3}4x)}{(x^{4}2x^3-1{)}^2}$

b $\frac{(x^{2}2x^2-1)3(x^2-x{)}^3(2x-1)(3x1)-(x^2-x{)}^3(3x1)(4x^{3}4x)}{(x^{4}2x^2-1{)}^2}$

c$.|)/((x^{4}2x^3-1{)}^2$

d$.\frac{3(x^{4}2x^2-1)(x^3-x{)}^3-(x^3-x{)}^3(3x1)(4x^{3}4x)}{(x^{4}2x^3-1{)}^3}$