D.) Harry S. Truman
That excerpt was from the Truman Doctrine
The Supremacy Clause does<span> not grant </span>power<span> to any </span>federal<span> actor</span>
The main problem that the New Deal addressed was the Great Depression, which caused massive unemployment within the country.
To face the depression, Roosevelt chose to not doing the traditional approach, but he took a gamble to cure the root of the problem heads on.
He created several welfare that created to provide job opportunities for the people, not giving them direct helps. By this opportunities, he gave the people various ways to survive and take care of themselves so they don't have to rely on the government
Hope this helps
