Identify the figure that will complete the pattern. (X) (1) (2) (3) (4)

Concept: In a figure-matrix completion item, the same governing rule is applied to every quadrant of the 2x2 grid, and the two quadrants in each row/column are mirror images of each other across the grid's central cross. Each quadrant here carries exactly two features -- a small notch on its outer edge and a two-armed vertex line -- and the missing quadrant must reproduce the notch position and both line endpoints that this mirror symmetry demands.

Application:

• The top-left and top-right quadrants mirror each other across the vertical centre line: each has a notch near the bottom of its outer edge and a vertex high up on that edge, with a short arm to the near top corner and a long arm reaching all the way to the far top corner.

• The bottom-left quadrant mirrors this relationship vertically: its notch sits near the top of its outer (left) edge, its vertex sits roughly mid-way down that edge, a short arm reaches the near bottom-left corner, and the long arm runs all the way to the bottom corner shared with the missing quadrant.

• Carrying the same left-right mirror that links the top pair over to the bottom pair, the missing bottom-right quadrant must have a notch near the top of its outer (right) edge, a vertex at that same mid-height, a short arm to the near bottom-right corner, and a long diagonal arm that lands exactly on the bottom-left corner it shares with the bottom-left quadrant.

Cross-check: Only one option places the vertex at that exact mid-height, keeps the notch confined to the top of the outer edge, and lands the long diagonal cleanly on the shared corner with no extra segment anywhere else -- matching all three quadrants' rule at once.

The completed pattern above confirms this: the correct figure is the one with the notch at the top of its outer edge, the vertex at that same mid-height, and a single clean diagonal running from the vertex straight to the shared bottom-left corner, with no extra segment anywhere else.