Answer:
They transported significant amounts of goods and built national marketing systems.
Explanation:
Railroads increased marketing and grew the industry.
Answer:
trade
Explanation:
they traded to expand the empire
Some flu victims had no H. influenzae in their lungs.
D it was challenging
Explanation:
Bc im awesome <em>Lol</em>
I also think it is the first one, but I am not entirely sure.
