D, proved that there was severe social and judicial bias against immigrants in the US. Sacco and Vanzetti were Italian immigrants and anarchists, and many believe that they were unjustly tried and executed because of that
I think the answer is that he was defeated at Fort Necessity because on the internet it says that he surrendered the fort to the french and it was destroyed by the french
It was primarily the "b. formation of the Vietcong in Vietnam" that led the Truman administration to expand the containment doctrine to include Asia, since this was seen as a threat to democratic principles in the west as well.
