There are how many primary methods of witness impeachment?

There are how many primary methods of witness impeachment?
 
  a. Three
  b. Four
  c. Five
   d. Six

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Which of the following refers to a form of human motivation whereby our decisions and actions are motivated primarily (if not exclusively) by our own interests?
 
  a. Egoism
  b. Psychological determinism
  c. Altruism
  d. Ethnocentrism

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The Foreign Intelligence Service Act includes a secret court of ________ federal judges who review requests for secret searches and covert electronic surveillance.
 
  A) eleven B) seven C) ten D) six

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The technology managers of the 21st Century are going to a strong background in technology which is matched in expertise in ________ development, managerial skills and knowledge about ________.
 
  A) policy; the criminal justice system B) policy; advanced equipment
  C) systems; the criminal justice system D) systems; policy

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Which Amendment guarantees defendants the right to confront their accusers?
 
  a. Fourth
  b. Fifth
  c. Sixth
   d. Fourteenth