If x cannot equal zero and x is inversely proportional to y, which of the following is directly proportional to 1/x^2?

A: -1/y^2

B: 1/y^2

C: 1/y

D: y

E: y^2

I can't seem to get my head around this problem, usually I'm pretty good at these but I just can't put this one together. I would appreciate any help, thanks.