“The magnification produced by a spherical mirror is -3”. 
Which of the following information can be obtained from the statement above?

The picture will be deemed inverted and expanded if it extends beyond the C. Concave mirrors are curved inward, increasing the object's height and width.
We are aware that the provided magnification is adverse. We may infer that the image is real because the magnification is negative.
The spherical mirror is a concave mirror since a convex mirror only creates imaginary pictures.

The suggested magnification is -ive even though we know that the linear magnification of a convex mirror is usually positive.

(1) The mirror is concave.

(2) Reversed image

(3) Actual image

(4) The image is expanded since the magnification is more than 1, which is 3 in this case.

Hence, the correct answer is option A.