If x and y are integers, and xy < 0, what is the value of x?

Asked: If x and y are integers, and xy < 0, what is the value of x?

I. Five times the value of x is 17 more than 3 times the value of y
5x = 3y + 17
x >= (3y + 17)/5
xy< 0
If x>0; y<0 or if x<0; y>0
Bur since x<0 & y>0 is not possible
x>0 & y<0
y = -4; x = 1 is the only solution
SUFFICIENT

II. x is a perfect square
x>0; y<0
x can take multiple values >0
NOT SUFFICIENT

IMO A