Answer:
D. More deaths means fewer workers.
Explanation:
By process of elimnation:
A. is incorrect because diesease is unrelated. War casualties do not equal diesease in population.
B. is incorrect because more deaths does not necessarily mean more battles. Infact, usually the opposite, because a side could be forced to surrender if it doesn't have enough troops.
C. is incorrect because elections would carry on just the same whether or not war casualties were high.
