The image below is a birds-eye view of a mirror placed in front of some objects, represented by arrows. If an eye is located at the placed marked, which objects can be seen by the eye in the mirror?

a. All of them can be seen except the object on the left.
b. All of the objects except for the one on the right can be seen in the mirror.
c. None of the them can be seen in the mirror.
d. Every object shown in the diagram can be seen in the mirror.