From the given image_7f89a2.png, find the next figure in the series.

Let's analyze the positions of the black triangles inside the square for each step:
1. First Figure: The triangles are located at the Top-Left and Bottom-Right corners.
2. Second Figure: The triangles alternate to the Top-Right and Bottom-Left corners.
3. Third Figure: The triangles return to the Top-Left and Bottom-Right corners (same as the first figure).

Following this alternating pattern ($1\to 2\to 1\to 2$), the fourth figure must be identical to the second figure, meaning the triangles must be positioned at the Top-Right and Bottom-Left corners, which corresponds to option A.