Which describes how triangle FGH could be transformed to triangle in two steps?

Which identifies the transformation that occurred after the dilation?

a dilation by a scale factor of 3 and then a reflection across the x-axis

a dilation by a scale factor of 3 and then a 180 rotation about the origin

a dilation by a scale factor of 4 and then a reflection across the x-axis

a dilation by a scale factor of 4 and then a 180 rotation about the origin