Which of the Following Strategies Best Works to Reduce the Impact

Multiple Choice

Which of the following strategies best works to reduce the impact of social desirability bias on survey responses?

A) Inserting an item that requests participants to select "Strong disagree" for that particular item.
B) Asking participants to promise that they would answer each survey item honestly.
C) Discarding the survey data of participants who do not complete the survey.
D) Asking about controversial issues subtly by framing all responses as normal behavior.