Which of the following is the best example of the foot-in-the-door technique of persuasion? A. anti-smoking advertisements that rely on celebrity spokespeople advocating for reduction in cigarette use

B. anti-smoking advertisements that use charts and graphs to show how many people die from smoking-related causes each year

C. getting your parents to agree to cut their smoking down by a few cigarettes, then asking them to quit altogether

D. supporting your sister who has decided to go cold turkey in order to quit smoking

Please help me