Correct Answer:

Solution : As per mirror image properties, closer things appear closer to the mirror in reflection.
According to the information provided, if the mirror is placed on the right side of the figure (on line MN), the right of the reflected image will appear as the left, and the left will appear as the right. However, the top and bottom sides of the reflected image will remain the same.
So, the mirror image will be –

Hence, the third option is correct.