Which answer figure will complete the pattern in the question figure?

In the question figure, the small squares which are on the same diagonal of the larger square are similar. So the bottom right square is similar to top left square.

In the top left square, a line is from centre to top left. Similarly, a line will be from centre to bottom right in the bottom right square.

$$\therefore\ $$The answer figure that will complete the pattern in the question figure is

Hence, the correct answer is Option A