Answer: Karen is most likely using a STRUCTURED INTERVIEW.
Explanation: A structured interview commonly used in survey research is a type of formal meeting, in person, for the assessment of a candidate or applicant that each individual is presented with the same exact question in the same order.
This is a means of collecting data for a statistical survey. The choice of answers to the questions is often fixed. Though open-ended questions can also be included within a structured interview.
Barter is the exchange and negotiations of a good or goods
Answer:
The main causes of the Guatemalan Civil War was started by the greed of the United Fruit Company (i.e. the fear of communism and racism toward the Mayan people).