An object is placed in front of a lens which forms an image of the object.
a) if the lens is convex, the image cannot be virtual.
b) if the image is real, then it is also inverted.
c) if the image is real, then it is also upright.
d) if the image is virtual, the lens must be a diverging lens.
e) if the image is virtual, then it is also inverted.