Answer:
Option B. A convex mirror forming a smaller, virtual image.
Step-by-step explanation:
The diagram above illustrate the formation of image by a convex mirror.
The image formed by a convex mirror has the following characteristics:
1. The image is always formed behind the mirror.
2. The image is always virtual.
3. The image is always erect.
4. The image is always diminished i.e smaller than the object.
A careful observation of the diagram above shows that the mirror is a convex mirror as the outer surface is the reflecting part and the inside surface of the spherical part is silvered or polished.
Now, since the mirror is convex mirror, therefore, the image formed by the mirror will be smaller and virtual as explained above.