Select the option figure in which the given figure is embedded as its part (rotation is NOT allowed).

The correct answer is Option 1.

Step-by-step Explanation:

1. Analyze the Given Figure:
The given question figure consists of the following key visual components:
- A vertical (portrait-oriented) rectangle at the top.
- A connecting line extending downwards from the bottom edge of this vertical rectangle.
- A horizontal step segment extending to the right.
- A horizontal (landscape-oriented) rectangle attached at the bottom of the connecting line structure.

2. Search for the Embedded Pattern (Without Rotation):
By examining Option 1, we can observe all elements of the given figure in their exact original orientation:
- Top Vertical Rectangle: Positioned in the top-middle region of Option 1.
- Connecting Stem & Step: Extends downwards from the bottom of the top vertical rectangle to the horizontal dividing line, steps to the right along the center horizontal line, and drops vertically into the lower-right quadrant.
- Bottom Horizontal Rectangle: Located in the lower-right quadrant, attached to the connecting stem line.

3. Conclusion:
Option 1 contains the complete given figure embedded as a part without needing any rotation.

Hence, the correct option figure is Option 1.