Answer:
Reflect over x=-2 and dilate G'H'I' by a scale factor of 2 from point G
Explanation:
First you'd have to reflect from x=-2 because its still on that line but the opposite way.
So we can already narrow it down to the second or last answer.
It wouldn't translate because that doesn't change the size. Its a dilation because the size has changed. Its dilated from point G because as you can see, G is the same point on both.
So the last answer choice is correct.