To solve this figure series question, we need to identify the pattern or sequence in the given figures and find the figure that logically fits in the place of the question mark.

Let's analyze each component:

1. The number of triangles remains constant at three, but their position shifts within the square.
2. The filled circle and the empty square interchange positions in a sequential manner.

From the first figure to the third:

• The triangles are positioned at the top left corner initially and then move to the top right corner.
• The filled circle starts at the top right, moves to the bottom right, and so on.
• The empty square moves in a similar pattern, exchanging positions with the filled circle.

Applying this pattern to determine the missing figure:

• The triangles, following their shift from top left to top right, will return to the top left position.
• Following the interchange pattern of the empty square and filled circle, in the missing figure, the empty square will be in the bottom right corner, and the filled circle in the top left corner.

The correct option that matches this pattern is Option D.