Which of the following statements best explains why the events detailed in the text were called Kristallnacht, the night of broken glass? Answer choices for the above question

A. It was a metaphor that Hitler used for the troops of the SA and SS.

B. It was an old German circus term that described the chaos of the night.

C. It was named that because of all the Jewish businesses that had their windows smashed.

D. It was named after an act of torture taking place at the concentration camps.