Figure out from amongst the four alternatives as to how the pattern would appear when the transparent sheet is folded at the dotted line.

The correct answer is Option 4: 

This pattern would appear when the transparent sheet is folded at the dotted line.

• The fold is along a vertical line, so the left half flips onto the right half (like a mirror).
• The top-left circle overlaps with the top-right triangle, and the bottom-left triangle overlaps with the bottom-right circle.
• During folding, the triangles reverse their direction (mirror image), while circles remain unchanged.
• The final combined figures match exactly with Option (4), where the orientations of triangles are correctly mirrored and placed inside circles.