(A) Concave mirror; Nature of image – real
A real image formed by a concave mirror has negative magnification (inverted image). When the image is enlarged (object between F and C), |m| > 1 and m is negative.
Negative magnification means the image is real and inverted (m = –v/u, with v negative and u negative, giving m negative). For |m| > 1, the image must be enlarged, which occurs in a concave mirror when a real image is formed (object between F and C). A convex mirror never forms a real image, and the virtual image from a concave mirror has positive magnification. So option (A) is correct.