GMAT Problem Solving Question 44: Functions

 
Try the following GMAT Problem Solving question on functions and algebraic manipulation.

Question 44:

The function $f$ is defined by $f(x)=1-x^2$ for all values of $x$. What is $-f(-f(-x))$ ?

1. $\quad 0$

2. $\quad x^2-2x$

3. $\quad x^2+2x$

4. $\quad x^4-2x^2$

5. $\quad x^4+2x^2$