A point source of light is placed at the focal point of a converging lens; the rays of light coming out of the lens are parallel to the principal axis. Now suppose the source is moved closer to the lens but still on the axis. Which statement is true about the light rays coming out of the lens?
(a) They diverge from one another.
(b) They converge toward one another.
(c) They still emerge parallel to the principal axis.
(d) They emerge parallel to one another but not parallel to the axis.

(e) No rays emerge because a virtual image is formed.