A paper is folded and cut as shown below. How will it appear when unfolded?

To determine how the paper will appear when unfolded, let us analyze the sequence of folding and cutting step-by-step:

Step 1: Analyzing the Folds
1. A square paper is first folded upwards from the bottom edge to the top half.
2. The remaining top rectangular portion is folded upwards again from its bottom edge to form a narrow top strip.
This means the top strip consists of 4 layers of paper covering the top quarter of the original square paper.

Step 2: Analyzing the Cuts
On the folded top strip, three cuts are made:
- A horizontal rectangular slot in the center.
- Two '+' sign cuts, one on the far left and one on the far right.

Step 3: Unfolding the Paper
- First Unfold (downward): Unfolding the strip downwards reflects the cuts across the fold line onto the second quarter section from the top. Thus, there will now be two central horizontal rectangles and two pairs of '+' signs along the left and right sides of the top half.
- Second Unfold (downward): Unfolding the entire upper half downwards onto the lower half reflects all features vertically across the horizontal centerline of the paper.

Step 4: Final Cut Positions
- The '+' cuts located near the top-left and top-right corners will reflect to the bottom-left and bottom-right corners. So, there will be four '+' cuts in total, one near each of the four outer corners.
- The central horizontal rectangle cuts in the upper half will reflect to create a corresponding pair of central horizontal rectangles in the lower half. Therefore, two horizontal rectangular slots will be positioned vertically centered along the middle axis of the sheet.

Comparing this unfolded pattern with the given choices, it matches the design in Option 4:


Thus, the correct answer is the option showing four '+' signs in the four corners and two horizontal rectangular slots in the middle.