Which statement about the sacco-vanzetti trial of 1921 is true?

a.
many people believed they were convicted solely because they were anarchists.

b.
most americans were glad to see them deported to italy after their trial.

c.
the evidence clearly and unmistakably proved they were guilty of robbery and murder.

d.
they were acquitted by a jury but afterwards taken from the jail by an angry mob and lynched.