I would say (b).
I would say this because both canals aloud for a shorter shipping route between major oceans. A perfect example of this would be the atantic and pacific instead of going around south america they could cut through the middle
FDR's New Deal was successful at combating the Great Depression. After implementing his New Deal policies, the unemployment rate dropped by roughly 10% in the first few years. Along with this, the programs helped to build America's infrastructure, parks, and resulted in the creation of several long term agencies that exist today (like the SEC and FDIC).
The New Deal affected future generations by creating agencies that still exist today. A perfect example is the Social Security Administration. This gives financial assistance to America's elderly population. This system is one that most employees currently pay into. This has been seen as a successful program, as it helps to pay for several different things (like medical costs) that senior citizens would otherwise struggle to pay for.
Well that would likely hinder the trade for such nation, like China. China has a TON of industry, and what would happen of it couldn't reach outside its borders? The economy would plummet! It would weaken every aspect of the nation.