A.  $x^2+y^2-4x-8y-2=0$

B.  $x^2+y^2+4x+8y+2=0$

C.  ${\left(x+2\right)}^2+{\left(y+4\right)}^2=16$

D.  ${\left(x-2\right)}^2+{\left(y-4\right)}^2=16$

A. ${(x-2)}^2+y^2=16$

B. $x^2+{\left(y-2\right)}^2=4$

C. ${(x-2)}^2+y^2=4$

D. $x^2+{\left(y-2\right)}^2=16$

A. ${(x-1)}^2+{(y-2)}^2=3$

B. ${(x+2)}^2+{(y+1)}^2=3$

C. ${(x+1)}^2+{(y+2)}^2=3$

D. ${(x+1)}^2+{(y-2)}^2=3$

A. x-y+3=0

B. x+y+3=0

C. x+y+5=0

D. x+y+3=0

A. ${\left(x-4\right)}^2+{\left(y-1\right)}^2=9$

B. ${\left(x-1\right)}^2+{\left(y-4\right)}^2=9$

C. ${\left(x-1\right)}^2+{\left(y-4\right)}^2=36$

D. ${\left(x-4\right)}^2+{\left(y-1\right)}^2=36$