A transparent square sheet shown above is folded along the dotted line. The folded sheet will look like ___________.

The correct answer is:

Step-by-Step Explanation:

1. Analyze the Original Transparent Sheet:
Looking at the original image, we have a transparent square sheet containing a letter 'K'-like shape with a vertical dotted folding line passing through the middle:
• The vertical straight line segment of the 'K' is located entirely on the left side of the central dotted line.
• Two slanted (diagonal) lines branch out from a common vertex on the vertical line, extending upwards-right and downwards-right across the central dotted line into the right half of the sheet.

2. Understand the Folding Transformation:
When the right half of the transparent sheet is folded over to cover the left half along the vertical dotted line:
• The left half remains in its original orientation.
• The portions of the diagonal lines lying on the right half undergo a horizontal reflection (mirror image transformation) across the central vertical dotted line.
• As a result of this reflection, the upper-right slanted segment flips to point towards the upper-left, and the lower-right slanted segment flips to point towards the lower-left.

3. Combine the Reflected and Original Line Segments:
• The original vertical line remains intact on the left half.
• The reflected line segments from the right side superimpose directly onto the left half, forming an inverted set of diagonal arms extending leftwards.
• Together, the original diagonal lines and the reflected diagonal lines intersect at a central point, forming a symmetrical 'X' pattern over the vertical line (an asterisk-like star figure).

Thus, the folded transparent sheet perfectly matches the second figure option: