Which of the following illustrate the abuse of respondents in marketing research? $($Check all that apply.$)$

Multiple select question.

Grow Studies uses a branded "black$-$box" methodology in a study.

Neo Studies assures a respondent that the interview will last only a few minutes when in reality it lasts an hour.

Dellis Research uses fake sponsors for a study.

Vera Research debriefs respondents at the end of a study that the study involved deception.