While Conducting a Research Interview, a Participant Becomes Slightly Embarrassed

Multiple Choice

While conducting a research interview, a participant becomes slightly embarrassed and decides to answer the questions in such a way as to make himself look more friendly and acceptable to the interviewer. This example most clearly demonstrates which limitation of interview methods in research?

A) Experimenter effects.
B) Placebo effect.
C) Social desirability bias.
D) Random sampling.