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Megatrends was a very popular book form the 1980's that attempted to make predictions about the future.
Many people considered this as a, "mainstream book."
Answer:
Germany realized that a war with Russia meant a war with France, and so its war plans called for an immediate attack on France through Belgium hoping for a quick victory before the slow-moving Russians could become a factor.
Explanation:
The answer is d because all of the problems in answer a,b, and c is in it and a is so wrong cause it said they overcame it
The Assassination of Archduke Franz Ferdinand