The image for the composition is the second option.
Since both rotations are about the same point, you can add the rotations together. So, ΔXYZ is rotated 10° + 80° = 90° about the point.
Also, since the rotations occur about point X, the X point does not move, so the images of ΔXYZ and ΔX'Y'Z' will have the same point for X. So, you should look for X = X'.
