Answer: Propoganda, Fear, Terror, Death
Explanation:
Advantages: Primary sources directly address your topic and often provide information that is unavailable elsewhere. For example, the questions you compose for an interview or a survey will likely target your unique interest in the topic. Similarly, to test a particular hypothesis, you can design your own experiment.
Disadvantages: Some primary sources, such as eyewitness accounts, may be too close to the subject, lacking a critical distance. Others, such as interviews, surveys, and experiments, are time consuming to prepare, administer, and analyze. Finally, unless you have been trained in accepted methodologies, your own primary research in certain fields of study may not be recognized as valid.
The correct answer for this question is this one:
"Congressional staffers must do homework and report back to the floor on what they've learned"
"special interest groups must step back and let the process works itself out"
"the language of the original bill will not change"
Hope this helps answer your question and have a nice day ahead.