Select the option figure in which the given figure is embedded as its part.

(Rotation is not allowed.)

The correct answer is Option 4.

Step-by-Step Explanation:

1. Analyze the Given Question Figure:
By examining the given figure, we can break it down into its distinct geometric components:
- An 'N'-shaped framework consisting of a vertical line on the left, a main diagonal line sloping upwards to the right, and a vertical line on the right.
- An additional line segment running parallel to the main diagonal line.
- A distinct curved arc located at the bottom-left, extending outward from the base of the left vertical line.

2. Enforce the Rotation Constraint:
The problem explicitly states that rotation is not allowed. This means all line segments and curves must appear in the exact same orientation and relative positioning in the target option figure as they do in the question figure.

3. Compare with the Given Options:
- Option 1: Consists of folded triangular structures and an inner enclosed curve. It does not contain the 'N'-shaped parallel diagonal configuration.
- Option 2: Contains an 'N' shape, but the circular arcs are attached at the top-left and bottom-right positions rather than having the bottom-left curve.
- Option 3: Displays two adjacent triangles with top circular features and a bottom-right wavy line, which does not match the question figure.
- Option 4: Clearly shows the complete 'N'-shaped figure with the inner parallel diagonal line and the bottom-left curved arc in the exact original orientation.

4. Conclusion:
Therefore, the given figure is embedded as a part of Option 4.