The given characteristics (virtual, erect, and larger than the object) describe an image formed by a concave mirror when the object is located beyond the center of curvature.
Therefore, the correct option is (C): Beyond the centre of curvature.
A spherical mirror is a mirror which has been cut out of a spherical surface.
There are two kinds of spherical mirrors:
Concave mirrors are also called converging mirrors, because in these types of mirrors, light rays converge at a point after impact and reflect back from the reflective surface of the mirror.
The convex mirror has a reflective surface that is curved outward. Regardless of the distance between the subject and the mirrors, these mirrors are "always" virtual, upright and reduced.