Correct Answer:

Solution : As per the mirror image properties, closer things appear closer to the mirror in the reflection.
According to the given figure, when the mirror is placed on the left side of the figure (on line X) the left side and the right side get interchanged, i.e., the left side becomes the right and the right side becomes the left. Whereas the top and bottom of the figure remain unchanged.

Thus, the correct mirror image of the given figure will be –

Hence, the first option is correct.