Examine the above figure and state which of the following option is correct? [one small box in the figure is equal to 1 cm]
A. The mirror has a focal length of -6 cm and will produce an image of magnification +1.
B. The mirror has a focal length of -3 cm and will produce an image of magnification -1.
C. The mirror has a focal length of -3 cm and will produce an image of magnification +1.
D. The mirror has a focal length of -6 cm and will produce an image of magnification -1.