I like D)
The answer is D.Because if you look at the graph it opens down where it intersects the x-axis twice at -1 and 1.Algebrically you consider the absolute value x as positive and you have: -x+1=0 -x=-1 and x=1 And second consideration is when absolute value x is negative and you have:
-(-x)+1=0 x+1=0 x=-1 So you have two zeros of 1 and -1.Please send me note and let me know if you got it.