When the origin is shifted to the point $P$ by translation of axes, the equation $2 x^2+y^2-4 x+4 y=0$ is transformed to $2 x^2+y^2-8 x+8 y+18=0$. Then, the transformed equation of the straight line $x+2 y+2=0$, if the origin is shifted to the same point $P$ is
- A
$x+2 y-1=0$
- B
$x+2 y-3=0$
- C
$x+2 y+7=0$
- D
$x+2 y+5=0$
✓ Correct answer: D
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