The task is to determine the mirror image of the given figure when a mirror is placed on the shaded line. A mirror image reverses the horizontal orientation of the elements in the figure while maintaining their vertical orientation. Let's go through the steps to find the correct answer:

Identify the elements in the original figure. In this case, we are looking at specific characters and possibly shapes.

Place an imaginary mirror on the shaded line and visualize how each element will appear in this mirrored perspective.

Each element in the original figure should maintain its vertical orientation but have its horizontal orientation flipped. For example, letters such as 'S' will face the opposite direction.

Review the options provided to find the one that matches this mirrored visualization.

In this case, when analyzing the options, the second image is the correct mirror image of the original figure because all elements are correctly flipped horizontally.

Therefore, the correct answer is the second option in the list.