In what ways are challenges to today's government a consequence of collective action problems?

In 1975, South Vietnam fell signaling apparent U.S. weakness on the global stage; U.S. involvement in the Vietnam conflict is an example of?

A) The Munich Agreement B) A missile crisis C) A proxy war D) Globalization

________ is an unintended influence of the questioner on respondents during in-person interviews

a. question bias b. the margin of error c. interviewer bias d. self-selection