In Recent Elections Voter-Restriction Programs Have Involved

In recent elections voter-restriction programs have involved:

A) the use of intimidating Republican poll watchers or challengers who may slow down voting lines and embarrass potential voters by asking them humiliating questions.
B) people in official-looking uniforms with badges and side arms who question voters about their citizenship or their registration.
C) warning signs posted near voting booths.
D) radio ads targeted to minority listeners containing dire threats of prison terms for people who are not properly registered - messages that seem designed to put minority voters on the defensive.
E) All the above