Which among the following is true for a plane mirror?

The correct option is D

All the above.

Properties of an image formed by a plane mirror

1. The distance seen between the produced picture and the object is the same as the distance seen between the object as well as the mirror.
2. The resulting image is virtual.
3. The image's size exactly the same as the object's size.
4. The resulting picture is laterally inverted ( that is the left side and the right side of the object are inverted in the image).

Here, ${\mathrm{h}}_0$ is the object height, and ${\mathrm{h}}_{\mathrm{i}}$ is the image height.

Therefore, all the given alternatives are correct. Hence option (D) is correct.