Your Mark:22dProblem #7: Which of the following functions is continuous at (0,0)?(i)f(x,y)={xyx25y2if(x,y)(0,0)0if(x,y)=(0,0)(ii)g(x,y)={x2y4x26y2if(x,y)(0,0)0if(x,y)=(0,0)(iii)h(x,y)={x2y292-3x2y2if(x,y)(0,0)16if(x,y)=(0,0)(A) all of them(B) none of them(C)(i) and (iii) only(D)(i) and (ii) only(E)(ii) and (iii) only(b)(iii) anly(G)(ii) only (H)(i) only