Answer:
It is either "B" or "D"
Explanation:
It might be "B" because they are talking about the American and British armies and how the Americans had a smaller army than the British.
But I also say "D" because, they are talking about the differences between communication 700 years ago and how it changed to now.
I think it's "D", that's what I would go with.
Hope I could help you.
