Select the figure that is the correct mirror image of the question figure with…

A mirror image formed across a line is a lateral inversion: every point of the figure maps to a point on the opposite side of the mirror line at the same perpendicular distance, so left-right positions swap while the vertical (up-down) layout stays exactly the same. No part of the figure rotates or turns upside down — only sideways positions reverse.

Applying this to the question figure, whose mirror line XY is vertical:

• the shaded kite must move from the slanted edge it touches in the question figure to the slanted edge on the opposite side

• the diagonal arrow must reverse its left-right direction while still travelling the same distance up and down, so it now starts from the edge the kite moves to (the edge opposite the one it touched in the question figure) and points back toward the centre

• the small cross mark must move to the side away from where it sits in the question figure, staying at the same height

Checking each option against this rule:

• the figure that leaves the shaded kite on the same slanted edge as the question figure, with only the arrow and cross turned around, is not a full reflection — every element must swap sides together, not just some of them

• the figure where the shaded kite rests against the edge opposite to the question figure, the arrow runs from that edge back toward the centre, and the cross sits on the side away from its original position, with every element's height unchanged, is the exact lateral inversion of the question figure

• the figure with the triangle turned upside down applies a top-to-bottom flip, not a left-right one — a mirror held on a vertical line never inverts the figure's vertical layout

• the figure that moves the shaded kite and the arrow toward the opposite edge but does not reproduce their exact size, angle and spacing is close to a mirror image at a glance, but not an exact point-for-point reflection

So the figure with the kite mirrored to the opposite edge, the arrow reversed toward the centre, and the cross shifted to the other side is the correct mirror image of the question figure about the line XY.