Which of the Following Best Illustrates Building Communication Skills

Which of the following best illustrates building communication skills?

A) Jason plays quietly with the blocks.He is praised for attending to the task.
B) Kyle rarely demonstrates eye contact.His teacher provides reinforcement when he does.
C) Madison is learning to do laundry.Her teacher creates a washing machine from a large box.
D) Kibe's lunch tray is out of reach.He indicates "eat" with his communication device,so his teacher moves the tray where he can reach it.