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Answer: B

Key insight
An even number of reflections along parallel axes returns the figure to its original orientation (possibly translated). An even number of reflections along axes at various angles produces a net rotation. Six reflections along axes P through U — track the net transformation.

Step by step
Step 1: The figure is an irregular heptagon with two internal strokes. It is mirrored sequentially across axes P, Q, R, S, T, U (each axis passes through one edge/vertex of the tiling).
Step 2: Each mirror reflection flips the figure. Two consecutive reflections = rotation. Six consecutive reflections across axes at 30° intervals (for a hexagonal tiling pattern) = net rotation of 6 × 30° = 180° (since each pair of adjacent axes produces a 60° rotation, and 3 pairs = 180°).
Step 3: A 180° rotation of the original figure produces the resultant. The internal strokes will be rotated 180°.
Step 4: Option B matches the 180°-rotated version of the original figure.
Therefore the answer is B.

Why wrong options are wrong
Option A: Represents a single reflection, not the result of six.

The figure shown below is mirrored along the axes P, Q, R, S, T and U. What would be the resultant figure?