A student uses a converging thin lens of focal length \(f\) as a magnifying glass to observe a small object. Initially, the object is placed at a distance \(d_o\) from the lens such that \(d_o < f\), forming a virtual, upright image. The student then slowly moves the object closer to the lens (further away from the focal point). Which of the following claims correctly describes the change in the magnitude of the magnification of the image, and provides a valid physical justification?