What did the term kristallnacht refer to

It means crystal night or night of broken glass

i think the correct answer is:

byzantine icon- served as religious symbols in christian churches and were valued and respected for their beauty

illuminated manuscript-preserved classical greek and roman knowledge and were the first bound books

because its important to learn about other countries and how high tech they are compared to us. also its good to learn about other cultures and how ours differs and in common also we need to learn about companies that we still buy since they ship it here.