Answer:
Around 22 million deaths
Explanation:
The total number of military and civilian casualties in World War I is estimated to be about 40 million: estimates range from 20.5 to 22 million deaths and about 20 to 22 million wounded military personnel, ranking it among the deadliest conflicts in human history.
Answer:
The Visigoths sack Rome. At its height the Roman Empire stretched from Britain and the Atlantic to North Africa and Mesopotamia. ... He hoped to draw the Visigoths into an alliance against the eastern Romans, but now hordes of other Germanic warriors invaded the western empire across the Rhine.
Court cases cost too much time and money.
The correct answer in my opinion would be that D is the most important factor here. But this question is quite tricky.
We can surely say for example that literature, organized schools and a hierarchy of priests are not something that constitute a civilization. Organized schools appeared to late, not every civilization had literature and having only a hierachy of priests is not enough to say you have a civilizaton.
Labor has been divided in pre-civilization hunter-gatherer societies as well.
For that reason I'd say the correct answer is D - more food than is needed for survival. Having this, the people in a certain group can focus on other things.
