Which of the following is the best example of diffraction?

AYour voice echoing back when you shout into a canyonincorrect answer
BA straw appearing to bend when you place it in a glass of waterincorrect answer
CA prism breaking a beam of light into its component colorsincorrect answer
DThe music on your stereo getting louder when you turn up the volumeincorrect answer

E. A wave passing through a narrow slit and then spreading out on the other side.