Fill in the blanks to complete the passage.

If respondents become fatigued, or are unengaged in the survey, they may answer questions in a general pattern without really considering their honest responses. This is known as using a _____ If respondents continually select "yes," they are showing ____. If respondents select all middle options, that would be referred to as ____. With sensitive topics, sometimes respondents will answer in such a way that their thoughts are in line with what they believe everyone else's are. This is called ____.

A. response set
B. acquiescence
C. fence sitting
D. socially desirable responding.