In each of the following questions, select a figure from the four provided…

Concept: In this figure-completion matrix, each row of the master square follows a left-right colour-inverted mirror rule — the shape in the first cell of a row reappears in the last cell in the opposite shade (black filled versus white outline), and the shape in the second cell reappears in the third cell in the opposite shade. Every row of the grid obeys this same rule, so the missing quarter must continue it.

Application:

1. Row 1 of the master square already shows this rule at work: a black circle and a white circle sit at the two ends of the row (same shape, opposite shade), while a white square and a black square fill the two middle cells (same shape, opposite shade).

2. Row 2 repeats the rule: a black triangle and a white triangle bookend the row, while a white diamond and a black diamond fill the middle two cells.

3. Row 3 — the top row of the missing quarter — opens with a white-outlined triangle and a black-filled diamond. Applying the same rule, the third cell must hold a white-outlined diamond (same shape as the second cell, opposite shade) and the fourth cell must hold a black-filled triangle (same shape as the first cell, opposite shade).

4. Row 4 — the bottom row of the missing quarter — opens with a white-outlined square and a black-filled circle. Applying the same rule, the third cell must hold a white-outlined circle and the fourth cell must hold a solid black square.

Cross-check: Rows 1 and 2 both satisfy the identical mirror rule across every column — the end cells share a shape in opposite shades and the middle cells share a shape in opposite shades — confirming this rule governs the entire square, not just one row. The quarter that reproduces a white-outlined diamond, a black-filled triangle, a white-outlined circle, and a solid black square (in that top-left, top-right, bottom-left, bottom-right order) is the one that keeps the whole design consistent.