The concave lens is moved away from the object through a distance of 10 cm. We get an image that is
(a) virtual and at a distance of about 17 cm from the concave lens
(b) real and at a distance of about 47 cm from the object
(c) virtual, diminished and at a distance of 10 cm from the concave lens
(d) real and at a distance of 57 cm from the object
