Right option is (c) H(u, v)= -(u^2+ v^2)
Easy explanation: Laplacian in frequency domain is: I[(∂^2 f(x,y))/∂x^2 +(∂^2 f(x,y))/∂y^2 ]= -(u^2+v^2)F(u,v), where ℑ is the Fourier transform operator and F(u, v) is Fourier transformed function of f(x, y) and -(u^2+ v^2) is the filter.