It was Franklin Delano Roosevelt.
Answer:
Specialization Leads to Economies of Scale
Explanation:
As labor is divided amongst workers, workers are able to focus on a few or even one task. The more they focus on one task, the more efficient they become at this task, which means that less time and less money is involved in producing a good.
Americans were unfamiliar with the territories of Vietnam and ended up having to search manually, house by house, allowing the Viet Cong to dig escape tunnels and snipe American soldiers.
A)The Mexican population pushed them north, to stay further away from the capital.
