Okay, here we have this:
Considering the provided graph, we obtain that:
We can see that the original points (figure N) are: (-5, 7), (-1, 5), (-8, 2), (-7, 2), (-5, 1)
And the final points (figure O) are: (7, -5), (5, -1), (2, -8), (2, -7), (1, -5).
Here we look, that from figure N to figure O the coordinates of the points in x and y are interchanged, therefore we are going to identify two transformations that do this:
We know that the reflection through the X axis, does this: (x, y) ... (x, -y), and also know that the rotation 90 degrees clockwise, results in: (x, y) ... (- y, x).
So when applying them together we get that:
(x, y)->(x, -y)->(-(-y), x)->(y, x)
This is just what we need, swap the coordinates and keep the sign.
So, finally we obtain that the correct answer is: A reflection over the x-axis, followed by a rotation 90° clockwise about the origin.