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Which detail best supports the idea that World War I created the “perfect conditions for a contagious virus to spread”?

Which detail best supports the idea that World War I created the “perfect conditions-example-1

2 Answers

3 votes
a is the correct answer !!!!
User Taron Saribekyan
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6 votes

Answer:

(a) army barracks were crowded with soldiers.

User Kyiu
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