I need more information to explain
Answer: A positive impact that the development of canals in the U.S is B!
Explanation:
The canals allowed more ways to travel through some land to expand and secure more trades in the west !
Yes the allies showed they could reliably deliver food for the majority of the population and showed how dominant the allied Air Forces were while on the flip side they were causing food shortages on east Germany which the Russians believed could lead to an over throw of the government so I would say it was very successful
