C-05-Q067mediumsingle_mcqউপরের সমীকরণ জোটের সমাধান কোনটি?a(x,y)=(±9, ±3)(x,y)=(\pm 9,\ \pm 3)(x,y)=(±9, ±3)b(x,y)=(±3, ±9)(x,y)=(\pm 3,\ \pm 9)(x,y)=(±3, ±9)c(x,y)=(9, 9)(x,y)=(9,\ 9)(x,y)=(9, 9)d(x,y)=(±6, ±5)(x,y)=(\pm 6,\ \pm 5)(x,y)=(±6, ±5)