Identify the figure that completes the following pattern. (X) (1) (2) (3) (4)

Concept: In a figure-completion / pattern-matrix question, each quadrant of a 2×2 grid is linked to its diagonally opposite quadrant by a fixed transformation — most commonly a 90° rotation of the same line pattern. The rule is first confirmed from the pair of quadrants that are already complete, then applied to the incomplete pair to find the missing figure.

Application: The top-right quadrant carries diagonal lines slanting one way, and the bottom-left quadrant — its diagonal opposite — carries diagonal lines slanting the other way, which is exactly that same pattern rotated by 90°. This confirms the rotation rule for this grid. The top-left quadrant carries vertical lines; its diagonal opposite is the missing bottom-right quadrant, so rotating the top-left pattern by 90° gives the figure that belongs there: vertical lines become horizontal lines.

Cross-check: Among the given options, only the plain horizontal-line figure matches this result. The vertical-line option repeats a pattern already used in the top-left quadrant — since all four quadrants use a distinct orientation, a repeat cannot be the missing piece — while the remaining two options use a dot arrangement and a dense two-directional crosshatch, both a different visual family from the straight single-direction lines used elsewhere in the grid.