If the water source is placed along M–N, as shown in the figure, which of the…

1. In a water reflection, the top and bottom of the figure interchange, while the left and right sides remain the same. 2. The original figure has a shaded triangle at the top apex. In the water reflection, this must appear at the bottom-pointing apex. This immediately eliminates Options C and D. 3. The original figure has a shaded triangle in the bottom-left corner. In the water reflection, this must appear in the top-left corner. Option B correctly represents this exact vertical inversion along with the correct orientation of all internal diagonal lines. Final Answer: Option B