Answer:
it refers to all the broken glass on the floor left their by the nazi people after attacking jewish property
Explanation:
they broke the glass and knocked down the doors to all of their stores and homes to influnce fear during the begging of the holocaust
I do believe that, after research, it is C, Coltan.
Correct me if I am wrong, but do have a good day!
The modern development of today's world would have first made the routes safer. Today we have the safety of common things such as police officers, hospitals, e.t.c. Transportation of goods would have been easier, and it would have been easier to carry larger amounts of goods at one time.
hope this helps :)
A.) the end of the soviet blockade