1.the trial and execution of nicola sacco and bartolomeo vanzetti demonstrated a. that the 1920s was a decade of social harmony. b. that the red scare enhanced basic american freedoms. c. that antiradical sentiment declined following world war i. d. how the red scare extended into the 1920s. e. that anti-immigrant sentiment declined following world war i.

Option:  d. how the Red Scare extended into the 1920s.

Explanation:

Nicola Sacco and Bartolomeo Vanzetti were involved in shooting in a Shoe company and were put in trial and executed in 1927. During the 1920s America was fearful of communist and radical politics. The result of this fearful was anti-communist, anti-immigrant among the Americans.

Sacco and Vanzetti tried to put this anxiety among the Americans by taking the benefit of the situation and tried to get support from the left-wing. Money was raised for their support by the left-wing around the world.  

the dominoes began to fall. the surrender at appomattox took place a week later on april 9. while it was the most significant surrender to take place during the civil war, gen. robert e. lee, the confederacy's most respected commander, surrendered only his army of northern virginia to union gen. ulysses s. grant

explanation:

letter a is the answer