What type of group is a trade association?

What type of group is a trade association?
 
  a. an economic interest group
  b. a public interest group
  c. a public sector interest group
  d. a labor union

Question -2-

The national parties have set restrictions about how states select __________.
 
  a. state party chairs
 b. election monitors
  c. national convention delegates
  d. the precincts to target in get-out-the-vote efforts

Question -3-

Which of the following is an example of an economic interest group?
 
  a. the American Association of Retired People (AARP)
  b. the Chamber of Commerce
  c. the National Organization for Women
 d. the National Education Association

Question -4-

Who was the first chief executive to win the White House as the nominee of a truly national, popularly-based political party following the first national party convention in 1832?
 
  a. John Adams
 b. Henry Clay
  c. Benjamin Franklin
  d. Andrew Jackson