A student is constructing a representation of a concave lens. The diagram illustrates her unfinished model.

What step would most effectively finalize her model?
•The student should illustrate the light entering the lens and then emerging in converging lines.
• The student should illustrate the light entering the lens and then departing in lines that are spreading out.
• The student should sketch the light rays entering the lens and then exiting at right angles.
• The student should depict the light rays entering the lens and then emerging in a straight trajectory.

The student should illustrate the light entering the lens and then departing in lines that are spreading out.