What best describes the system of government of the United States?

Nathan recently participated in a public opinion poll. Now he is thinking back on some of the questions he was asked and how he responded. Nathan thinks he recognizes evidence of a halo effect in one of his replies

Which of the following yes-or-no questions is most likely to have produced it? a. Should people be allowed to educate their children at home? b. Should groups have the right to contribute money to opposition candidates in closely contested election campaigns? c. Should members of military families be allowed to use Skype to stay in touch with their relatives during military deployments? d. Should sexually explicit magazines be excluded from check-out lanes, where children could otherwise view them?

Which of the following was outlawed by a U.S. Supreme Court decision in 1944?

a. The caucus b. The direct primary c. Special elections d. The White primary e. Party conventions