What is the completely factored form of 3x^5 – 7x^4 + 6x^2 – 14x?
A(x^4+2x)(3x-7)
Bx^4(3x-7)(2x-1)
Cx(x^3+2)(3x-7)
Dx(3x^4-7x^3+6x-14)
A(x^4+2x)(3x-7)
Bx^4(3x-7)(2x-1)
Cx(x^3+2)(3x-7)
Dx(3x^4-7x^3+6x-14)