What did Andrew Carnegie do with his wealth? A. He bought many large, expensive houses.
оо
O B. He gave it all to his family.
O C. He used some of it to help the poor.
O D. He sent most of it back to Scotland.

which statement explains one of the reasons world war 1 was so much more destructive than earlier conflicts

the answer should be a. the sui empire, the tang empire extended from korea in the west to manchuria in the east.