Answer: The American dream is the belief that anyone, regardless of where they were born or what class they were born into, can attain their own version of success in a society in which upward mobility is possible for everyone.
Explanation:
The answer is The New Deal
I think the answer will be the first one because it is both not very general and not very specific.
It tells us the solution to the problem in the story
The most important role of the Parthians in the Silk Road trade was their ability to provide Chinese silk to the Romans, who had a seemingly endless appetite for this material.