Select the correct answer from each drop-down menu. 
The graph of the function y=x^2(x^2-6x+9) has zeros of _____, so the function has ___ distinct real zeros and ___ complex zeros.
Drop-down one: 
0 and -3
-3,0 and 3
0 and 3
-3 and 3
Drop-down two:
no
two
three
four
Drop- down three: 
no
two
three
four