$\text{A square sheet of paper is folded along the dotted line successively along the directions}$

To find the final pattern on the unfolded square sheet of paper, let us trace the folding and punching process step-by-step:

Step 1: First fold (Bottom half folded upward)
The square sheet is initially folded along the horizontal line of symmetry, moving the bottom half upward over the top half. This leaves a rectangular sheet corresponding to the top half of the original square.

Step 2: Second fold (Right half folded to the left)
Next, the paper is folded vertically from right to left along the central vertical line of symmetry. This leaves a small square folded sheet in the top-left quadrant.

Step 3: Cuts/Punching
In the top-left quadrant, two arrow-shaped cuts/designs are created:
- A left arrow pointing UP
- A right arrow pointing DOWN

Step 4: Unfolding Step 1 (Unfolding Rightward)
When unfolding the top-left quadrant back to the right to reveal the top half of the sheet, a vertical mirror image is created across the vertical fold line:
- The top-left quadrant contains: [UP, DOWN]
- Reflecting horizontally to the top-right quadrant produces: [DOWN, UP]
So, the entire top row from left to right has arrows in the directions: UP, DOWN, DOWN, UP.

Step 5: Unfolding Step 2 (Unfolding Downward)
When unfolding the top half downward to reveal the full square sheet, a horizontal mirror image (reflection across the horizontal line of symmetry) is created. Under horizontal reflection, vertical arrow orientations invert (UP becomes DOWN, and DOWN becomes UP):
- Top-left quadrant [UP, DOWN] reflects to bottom-left quadrant as: [DOWN, UP]
- Top-right quadrant [DOWN, UP] reflects to bottom-right quadrant as: [UP, DOWN]

Conclusion:
- Top Row: UP, DOWN, DOWN, UP
- Bottom Row: DOWN, UP, UP, DOWN

Comparing this complete pattern with the given options, it perfectly matches the image shown in Option 3:


Therefore, the correct answer is represented by Option 3.