A Positive Lens Has a Focal Length F

Multiple Choice

A positive lens has a focal length f.The image is the same size as the object when

A) the object is at the focal point.
B) the image is on the opposite side of the lens from the object and is the same distance from the lens as the object.
C) the image is on the same side of the lens as the object and is the same distance from the lens as the object.
D) The image can never be the same size as the object.
E) None of these is correct.