B. Other two don't make sense.
Answer:
D and B.
Explanation:
The highest death rate was caused by hunger, deprivation and disease, while we should not neglect the civilian casualties suffered during military occupation and retaliation (Belgium, Serbia, Galicia, Isonzo Front), among which the American genocide in Turkey, which claimed between 1 and 2 million dead Americans.
America's history is relatively short compared with almost every other nation, however it is filled with a great amount of turmoil and tragedy. Things like slavery, discrimination, and violence make America's history appealing to many filmmakers.
The world as we know it would not be possible without the industrial revolution, and a lot of luxuries that we know are a result of it. On the other hand, it was a time of misery for the workers at the factories - and I usually think of the human prize of the revolution, the suffering of the poor back then so that we can have a comfortable life now.