SAT math practice question: Factoring expressions

 
Try the following SAT math practice question (Calculator Permitted) that tests your ability to factor algebraic expressions.

Question(Calculator Permitted):

Which of the following is equivalent to the expression $4-x^2+2x^3-x^4$ ?

1. $\quad (2-x)(2-x+x^3)$
2. $\quad (2-x)(2+x-x^3)$
3. $\quad (2-x)(2+x+x^3)$
4. $\quad (2-x)(2-x-x^3)$