A person is looking at his image formed in a mirror. What will be the nature of the image?

Objects in front of a plane mirror are reflected as pictures that appear to be behind the plane that the mirror is located in.
A straight line traced from one portion of an item to the corresponding portion of its image forms a right angle with the surface of the plane mirror and is split in half by it.
A plane mirror always creates a virtual image that is upright, the same size and shape as the item it is reflecting, and virtual (meaning that light rays do not truly originate from the image).
A plane mirror always creates a virtual and upright picture, as is well knowledge.
As may be seen from the illustration,

Since a plane mirror always creates a virtual and erect picture, we may argue that the rays that leave the top of an extended source are reflected to the second mirror before reaching the observer.
Consequently, this produces an image that is erect.
Also, mirrors on an aircraft always create virtual pictures.
Therefore, even such a mixture creates a virtual picture.

Hence, the correct answer is option D.